Following on from my investigations on why the SGS2 takes *so" long to re-establish a WiFi connection, it now seems part of the problem is a major delay in obtaining an IP address.
In another thread (I forget which one) it was suggested that slow WiFi could be caused by a router not being able to cope with 802.11b, g & n traffic at the same time, which got me thinking - what if I disable the n part of the WiFi on the phone to revert it to 802.11g - would this make acquisition time on an older router faster?
So - does anyone know which file / script etc. could be altered to keep WiFi enabled, but ONLY at 802.11g; not utilising 802.11n?
stuclark said:
Following on from my investigations on why the SGS2 takes *so" long to re-establish a WiFi connection, it now seems part of the problem is a major delay in obtaining an IP address.
In another thread (I forget which one) it was suggested that slow WiFi could be caused by a router not being able to cope with 802.11b, g & n traffic at the same time, which got me thinking - what if I disable the n part of the WiFi on the phone to revert it to 802.11g - would this make acquisition time on an older router faster?
So - does anyone know which file / script etc. could be altered to keep WiFi enabled, but ONLY at 802.11g; not utilising 802.11n?
Click to expand...
Click to collapse
Just a guess, but is likely a build.prop tweak
Is this a frequent problem ? Has never happend here
Sent from my GT-I9100 using XDA App
As I've said in my post on the general forum, I get a horrible delay every time I ask the phone to connect WiFi.
I've got the WiFi sleep policy set to "when screen turns off" to save battery power; and using the same router as on my SGS (hell, i can sit the phones next to each other to try this) I get the following:
Waking the SGS up from a sleep results in a delay of 1 or 2 seconds before WiFi connects.
Doing the same with the SGS2 results in a delay of up to 1 minute before WiFi will connect. (sometimes it can be seen to give up trying to acquire an IP address, then try again)
...so yes, may be a router issue, but clearly there's something different between the 2.3.3. on the SGS versus the 2.3.3 on the SGS2 as well.
You could just disable n mode on your router if you think mixed mode is slowing it down. Most new routers will let you choose which wifi modes to broadcast via their web interface. The best option would be to only use n if all your devices support n.
Sent from my GT-I9100
Router only supports g. I'm suspecting the phone looks to n first, hence my interest in disabling it.
stuclark said:
As I've said in my post on the general forum, I get a horrible delay every time I ask the phone to connect WiFi.
I've got the WiFi sleep policy set to "when screen turns off" to save battery power; and using the same router as on my SGS (hell, i can sit the phones next to each other to try this) I get the following:
Waking the SGS up from a sleep results in a delay of 1 or 2 seconds before WiFi connects.
Doing the same with the SGS2 results in a delay of up to 1 minute before WiFi will connect. (sometimes it can be seen to give up trying to acquire an IP address, then try again)
...so yes, may be a router issue, but clearly there's something different between the 2.3.3. on the SGS versus the 2.3.3 on the SGS2 as well.
Click to expand...
Click to collapse
quick side note, wifi sleep policy set to NEVER saves you much more battery power because when it switches over to 3g, 3g uses way more power than just leaving it on wifi. counter intuitive but true.
Have you tried hard coding an IP address on the S2?
And by Hard coding, he means manually setting a Static IP address and now allowing the DHCP to provide you an IP address each time. Although the IP will most likely be the same while using DHCP, it has to request and authenticate each time. Setting a Static IP address eliminates the process of "Asking" for a IP address each time.
when the phone scans and finds the ssid, as part of that scan it checks if the router supports b/g/n then will try to connect at the highest speed. If the router isnt n compatible it wont even try.
I don't want to give the phone a static IP as I regularly visit three or four different wireless networks and they don't all use the same IP range.
I do know how DHCP works, this isn't a newbie question.
It seems definite now, watching the phone, that it tries to connect once (presumably on n), fails, then re-connects (quickly) on g.
Of course, I'll be changing the router eventually; I'm just interested in what's going on first
stuclark said:
I don't want to give the phone a static IP as I regularly visit three or four different wireless networks and they don't all use the same IP range.
I do know how DHCP works, this isn't a newbie question.
It seems definite now, watching the phone, that it tries to connect once (presumably on n), fails, then re-connects (quickly) on g.
Of course, I'll be changing the router eventually; I'm just interested in what's going on first
Click to expand...
Click to collapse
Understand about leaving it set for DHCP. Trying a fixed IP as a test may tell you if DHCP is part of the delay. If the b/g/n search is that slow it would be useful if it could be configured more precisely.
Have you tried it using another router using only g? If n is available it connects quickly? Seems like others would have mentioned this if it is something with the phone as g-only networks are still common.
I too am interested in disabling 802.11n. wpa_supplicant keeps hanging on some wifi networks and I suspect it may be because of n.
Related
I got my HTC Hero on Orange in the UK last week.
I am getting an issue where a normally stable wireless network will be knocked out if i connect the Hero on Wifi.
I know its not the radio - connects fine on WEP secured work network and on the open connection on the train and at McDs
I have done a fair bit of googling and RTFM and basically found lots of router specific issues on Android phones but nothing that looks like the same issue i have encountered except one on the Android community forum where no one has a solution or suggestion i havent already tried.
XDA developers was a great help with unlocking and flashing a ROM to my Trion so i thought i would amend the post i made there and see if i get any more expert opinion on here. Apologies for the length of the post - will post ROM and build numbers if that helps (and someone tells me where to look on the phone!)
Conscious this is a lenghty post (hello all!) but thought as i struggled to find anything it might help others in the same situation if i detail the issues and what i have looked at and hypothesised that i need to try to resolve this - in case anyone else has similar issues.
Netgear DGFV338 ADSL and Ethernet VPN & Firewall router.
Three wireless laptops and Sony Ericsson G900 all connect fine
Laptops run XP Pro, Windows 7 RC and a dual boot Vista/Ubuntu machine
desktops (all on gigabit backbone) run similar mix but only lose internet after router and modem have borked.
I am running this on a 20 MB Virgin connection which is usually faultless (3 years or so uptime not counting upgrades to the modem). Speed or timeout is not an issue - usually get between 12MB and 17MB DL and 700kbps UL
As soon as i connect with the Hero i can use the Wifi but briefly (one web page, start to load Market etc) - basically network detected and WPA-PSK TKIP connected, IP allocated and showing in wireless clients table of router.
I was running restricted MAC access and IP/MAC binding as i have ports open for the 360's and the Wii and want to restrict access to these devices only but removed this as part of the troubleshooting.
Shortly afterwards 20 seconds to 1 minute after connection the wifi drops - all connections lost, laptops lose connections and i lose connection to Virgin. It requires a full reboot of modem and router with the Hero off to recover a connection.
I wiped the router and all the security and all the other pcs etc work fine
then turn on hero - same story. So its not any of my more esoteric and paranoid router settings - i dont think.
Been on the Netgear forums and apart from some issues with the G1 and AES on home routers (mine is the full enterprise kit metal case) i find nada
Troubleshooting to date has narrowed it down to a couple of choices.
I know my router but i am brand new to this phone so some of this is pure guess work. One suggestion was ARP floods from multiple requests from phone getting it blocked by the firewall. Except traffic logs dont support this
Encryption support:
I use WPA PSK TKIP - this is detected as WPA Personal by the Hero but it can connect to router when i use the pass and this setting so i am working on the basis this is supported and correct.
I have read about issues with poor AES support on some routers which are fixed by a firmware update but have the same issue with other devices on AES so would prefer TKIP. So it could be encryption handling - initial connection works but error logging could crash the router if this is not working correctly
Anybody know if the WPA personal listed for connections is TKIP or AES?
I cant find any clear information on this.
Orange DNS or restricted gateway settings:
This appears to be the main symptom - i lose DNS support and therefore access to the internet. Turning off the Hero and reconnecting the laptop gives me access to the router but i need to reboot the modem to get my IP back (dynamic but changes every 12 months or so) the hypothesis is that the Orange connection in this build has the DNS hardcoded to go through their DNS servers which either Orange or Virgin systems dont like and boots my connection off the internet. Bit of a long shot but as i cant seem to find any way to fix static IP or DNS listings it could be the case as i cant switch to OpenDNS as i would to test this otherwise.
Only comes to mind as the first day with the phone (when Orange 3G was not active) i didnt have this problem - wifi on phone and laptop worked fine and both together
Bit of a longshot but the symptoms point to a DNS corruption if it isnt my router treating repeated WPA or DNS requests as a DOS attack. It could be DHCP creating errors but i can bind a MAC to specific IP to override this on the router. It sees the Hero, recognises the MAC and adds it to the restriction whitelist.
I havent checked ARP logging but that theory could pan out as its unlikely DNS would take down the router and modem - ARP or DOS lockdown could.
WiFi Channel
I run channel 11 due to neighbours wifi interference - Wii wont work at all with default channel.
I cant find the default channel information on the Hero but would assume it is 6 like most devices.
this one is strange - if it is the Wifi Channel then seeing the router should be a problem and connection shouldnt happen at all. It seems unusual to allow a connection but then crash the router as it is getting traffic on a different channel.
Could be another side effect of my routers firewall blocking suspicious traffic but seems unlikely.
As you can see a fair amount of things have been tried and i am still getting nowhere.
I need to try the encryption settings - does anyone know what the WPA setting is on the Hero and which encryption is supported/offered as standard?
I need to try changing my router back to channel 6 - does anyone know the default channel or how to change this in the Hero?
I need to try static rather than DHCP (but on the phone as already have tried forcing IP from router) - how do i get to these settings?
I need to try static DNS rather than Dynamic (router proxy of Virgin DNS)
I do have a Linksys WRT54g (three of them - one vanilla, one Sveasoft and one Tomato) which i use for outside events at work so i could swap one of those in but i suspect its a combination of Hero settings and router settings and i would like to get my main router set up (and keep the 8 ports) than swap back to the older WRTs and have to set up my Xbox 360s to get around the issue they have with being on a switch with a different subnet and not connecting to Windows 7 media centre
Basically i have tried most of the things i can try with the access i have on the phone and my knowledge of its default settings. What apps can i try to give me control of the networking and access section?
Otherwise, loving the phone. Better than the reviews and whilst not lightning fast its a damn sight quicker than an overclocked Trion i was running before (which worked fine on the same router and WPA Personal)
I am liking Android, glad to not be locked into the Apple tax/ecosystem and realising that WinMo has a looong way to come; even with the help HTC and xda developers offer to make better use of the hardware.
But i am heavy internet user and i cannot risk running my Hero at home on 3g when i have 500MB cap and a £3 a MB over limit charge with no notice from Orange to say i am near limits.
Any ideas? feedback? similar tales of woe?
Possible solution
Ohkaaay - found advanced settings so that helped! n00b error
Removed all security.
Changed channel to 6
connects
change to channel 11
connects but crashes router
reboot router and modem
change back to channel 6
change security to WPA Personal AES
connects
doesnt crash router
change to channel 11
connects
doesnt crash router
i appear to have a working connection and there is no way i would have made it through this post with the Hero on before i made these changes
weirdly i now have two identical entries in the wireless networks list
one says SSID_name Connected
two says SSID_name WPA Personal
remove remembered networks
Hero autodetects my SSID_name
sign in with AES password
two listings in wifi list again, same as before.
So it looks like WPA TKIP doesnt work on my router with Hero
AES does.
Channel 6 works with no security
Channel 11 doesnt
BUT... enable AES and Channel 11 works.
Guess the Channel 6 signal issue interferes with the TKIP or something
But i can report that on Netgear router WPA Personal AES works ok, which apparently on the pre-Cupcake G1 was a known issue.
Apologies to post and then reply to my own post but this might help someone
I can confirm your findings regarding WPA + TKIP vs WPA2 + AES.
I was running WPA + TKIP on a Linksys WRT54GX and experienced major connectivity issues with my Hero (although is did not crash the router). Did not experience this problem with my iPhone 3G.
Changed configuration to WPA2 + AES and Hero does now work without any issues.
I know this:
A. Is fairly obvious
and
B. Is not particularly helpful to you
However - if any device (regardless of whether it is buggy or not) is crashing your router, the router clearly has buggy firmware itself and is at fault. Router firmware should be robust to the unexpected, especially on wifi as this could be prone to denial of service attacks from anyone happening to be walking by. A router that is crashed by an attempted client connecting is a bad sign.
My personal advice would be to change to a decent standalone router. I use a Buffalo WHR-G54S flashed with Tomato firmware v1.21.8005 (with a seperate linksys Adsl2+ modem to provide internet). It is working flawlessly for me in WPA + TKIP/AES with no issues.
hi,
I've linksys wi-fi router model WRT54GH in my home & it has a good amount of signal strength to cover entire area.
My recently bought galaxy S2 is able to identify linksys wi-fi access point & connects too with the IP assigned to it, also at wi-fi settings connected being displayed.
Now when I try to access Internet (any url google/FB), it doesn't connect at all.
I tried almost everything about router configuration, restart etc. but with no success
can someone plz help on this ?
shantanu_d said:
hi,
I've linksys wi-fi router model WRT54GH in my home & it has a good amount of signal strength to cover entire area.
My recently bought galaxy S2 is able to identify linksys wi-fi access point & connects too with the IP assigned to it, also at wi-fi settings connected being displayed.
Now when I try to access Internet (any url google/FB), it doesn't connect at all.
I tried almost everything about router configuration, restart etc. but with no success
can someone plz help on this ?
Click to expand...
Click to collapse
In my case the problem was with frozen "WiFi sharing" in combination with juicy defenders "Location" fearure. It seems such combination is dangerous. Solutin (in my case):
1. defroze
2. remove all wifi networks
3. reboot (for "clean" frozing)
4. make WiFi sharing frozen
5. reboot again just for fun
Try to check your router's MAC address restrictions. In my router, as security, I have to add MAC addresses of each device to share internet. They take IP's, connects etc. but does not have accesses to internet
as above, check that there is no MAC filtering set up.
one other thing it may be is the security settings, if you have a WEP Key to access the router it may need the Hex conversion of your key depending on what level of security you have (64bit or 128bit for example)
shantanu_d said:
hi,
I've linksys wi-fi router model WRT54GH in my home & it has a good amount of signal strength to cover entire area.
My recently bought galaxy S2 is able to identify linksys wi-fi access point & connects too with the IP assigned to it, also at wi-fi settings connected being displayed.
Now when I try to access Internet (any url google/FB), it doesn't connect at all.
I tried almost everything about router configuration, restart etc. but with no success
can someone plz help on this ?
Click to expand...
Click to collapse
Try setting up a static IP address for your phone, I presume your network is a 192.168.1.0, go into router settings and LAN setup, give your phone the address in a static DHCP assignment of 192.168.1.5, or any other address in the same subnet your in. Some SGSII's have problems with dynamic DHCP for some reason, some NS had the same problem too,
Sent from my Sammy Galactic S2 Beastly Device
I have a similar problem and I fix mine temporarily by turning my wifi off, then in wifi settings > advanced, I change wifi sleep policy from 'never' to 'only when the screen is off'. However I have to do this every time I want to use wifi so it can become quite annoying sometimes.
So I can get through however only for a short period of time as it seems as long my Galaxy S2 keeps turning off my wifi even though it's on :/
I had exactly the same issue on Linksys E4200 with my laptop, could connect to network, even to router's attached storage, but not to internet. Restart helped
On SGS2, I couldn't connect to the router at all at first, but fixed this by switching from WPA2/WPA mixed mode access protocol to WPA2 private. But I guess this is not exactly your issue.
SiSL said:
Try to check your router's MAC address restrictions. In my router, as security, I have to add MAC addresses of each device to share internet. They take IP's, connects etc. but does not have accesses to internet
Click to expand...
Click to collapse
Thanks for the suggestion but MAC restriction is already disabled at router
Robsso said:
I had exactly the same issue on Linksys E4200 with my laptop, could connect to network, even to router's attached storage, but not to internet. Restart helped
On SGS2, I couldn't connect to the router at all at first, but fixed this by switching from WPA2/WPA mixed mode access protocol to WPA2 private. But I guess this is not exactly your issue.
Click to expand...
Click to collapse
Yes, you are right this is not an issue for me.
In fact my SG2 being assigned with an IP address from 192.168.1.xx subnet.
Also at a same time my laptop connected with an IP from same subnet able to ping SG2.
OccasionalDroid said:
Try setting up a static IP address for your phone, I presume your network is a 192.168.1.0, go into router settings and LAN setup, give your phone the address in a static DHCP assignment of 192.168.1.5, or any other address in the same subnet your in. Some SGSII's have problems with dynamic DHCP for some reason, some NS had the same problem too,
Sent from my Sammy Galactic S2 Beastly Device
Click to expand...
Click to collapse
My SG2 being assigned with an IP address from 192.168.1.xx subnet.
So I think IP addressing may not be an issue.
Also another thing I tried was, at a same time my laptop connected with an IP from same subnet able to ping SG2.
So wi-fi router may not be an issue here, whats say ???
Even I am facing the same issue at my office network. I am able to connect to the wireless network but if I try to access any app I cannot browse. This is really frustrating looks like some issue with the modem drivers.
I was able to browse on another wifi created virtually by mobile tethering. This looks like a major bug with the current firmware. Another interesting thing to note is that the Wifi network has a hidden SSID and uses WPA2 auth scheme.
I have seen a Galaxy S able to connect to the same n/w without any issues.
Has anyone figured out a solution to this one ?
Hi, thanks for your reply.
I am yet to figure out a solution for this
Even I am also agree on the probable issue with modem driver.
I've D-link modem.
Are you aware of anything about this modem that can be reconfigured to get this worked ... ?? pl let me know
The wifi router at my office is Cisco Aironet 1200 Series, anyone else facing this issue ?
I'm having the same problem at work connecting my SGS2 with v2.3.3 Official Firmware (customized for Orange service provider) to a Cisco Aironet 1130 AP. I can see that the Galaxy authenticates with the AP correctly and gets IP from the DHCP server, but it cannot send or receive any traffic, although the phone stays connected and authenticated. At home, I use an Atheros based Fonera with DD-WRT without any problem.
As I'm the company's network administrator, I will try to further investigate this problem, but it seems like some kind of incompatibility between the devices or misconfiguration ....
Basuk said:
The wifi router at my office is Cisco Aironet 1200 Series, anyone else facing this issue ?
Click to expand...
Click to collapse
try turn off the wifi, turn off the mobile data and turn on the wifi again
It seems the SGS2 sometimes has problems with DNS.
Try a static IP and use 8.8.8.8 as second DNS server, which is a free Google DNS server.
This fixed MY problems
I rooted my SGS2 and voila wifi worked at my office finally I have been able to find a solution.. love my SGS2 the Beast...
I'm having this same problem..
I think I've tried all the solutions above, but one (Sorry - noob question):
Rooted?
is there a firmware patch or something that I should know about?
Anyone got any other ideas?
ETA:
I can connect to hotspots (DHCP) and at home (Have to set it to static tho)
No internet
AP works - Laptop and i8910 (had to set static and advanced settigs etc). I've rebooted it a few times, set DHCP on and off. DHCP seems to be running on the router
viqles said:
I'm having this same problem..
I think I've tried all the solutions above, but one (Sorry - noob question):
Rooted?
is there a firmware patch or something that I should know about?
Anyone got any other ideas?
Click to expand...
Click to collapse
This is an issue with SGS2 with wifi server using authentication protocol TPIK, if you use AES as encryption then it will work without any issues.
That should be a setting in my AP? I can't see it...
If I get a new non-crappy AP is that likely to solve my problem?
ETA:
Ah - that's a WPA thing? Mine only seems to do WEP - is that right?
When i downloading torrents using my android phone over the WiFi, its connection lost several times. My phone WiFi policy is "Keep WI-Fi on during sleep" as "Always". I use "Ttorrent" app client. Most of the time Ttorrent display "No suitable network" error. If i turn on the screen, problem not fix.
I have android 4.0.3 ROM and i connected my phone into my ADSL router, not a public.
Are there any solution for me?
Thanks!
Did you rule out the signal strength and wifi network quality? It might just be that the connection is flaky. One way to test is just sitting close to the access point or.. to change it to a different channel (when you suspect interference from neighbor routers is the issue)
nheinen said:
Did you rule out the signal strength and wifi network quality? It might just be that the connection is flaky. One way to test is just sitting close to the access point or.. to change it to a different channel (when you suspect interference from neighbor routers is the issue)
Click to expand...
Click to collapse
Thanks friend your reply!
If I move my phone close to the router, its not fix. Also its possible affect, my neighbors Wi-Fi connections (because of the distance of neighbor houses, to my place). Is it a effect of my router settings?
Sent from my WT19a using Tapatalk 2
Is there an option in your client to lower the maximum number of connections? That's a recommendation from the developers of adownloader, which is what I use
I am having the same problem.
I've tried so many things, on the phone and router.
Nothing has solved it.
I've adjusted a lot of settings on the router which have made no difference, I've used different types of security, wep, wpa, wpa2, no security at all. Static ip, changed dhcp lease times etc
On the phone I've tried setting a static ip, flashing different kernels, using different torrent clients, lowering number of global connections to 1 etc
I've also tried a few apps from the play store, wifi fix, wifi static etc
The wifi will just randomly disconnect when I download any torrent, there is no pattern to it but I can't download any torrent without disconnecting.
I would love to know a fix.
I'm using a galaxy s3
One thing I want to try is a different router to rule out whether the problem is the router side or the phone side.
At the minute I have no idea what is causing the issue.
I don't get disconnected when browsing the web etc on my phone.
If I use my pc or laptop to download torrents I don't get disconneted.
Ok I've finally worked out why I was getting drop outs.
For some reason when I use wpa2 with aes ecryption I get disconnected when downloading torrents.
When I use wpa and tkip I get no disconnects at all.
It's not a good solution as I get slower speeds using wpa and tkip but at least I don't get disconnected.
I wonder if this will be fixed?
This is an ICS bug. No matter what you have your wi-fi sleep policy set to, when the screen goes off the performance drops drastically. Download the Wi-Fi High Performance Widget from the market. When tap to enable the widget, your wi-fi will run at 100% performance no matter your screen state.
This isn't a sleep issue though. I have wifi set to always on keep wifi on during sleep.
Even the op said he tried leaving the screen on.
I set screen timeout to 10 minutes so I can monitor the application and also set screen on within adownloader and I get disconnected.
The only fix for me is using wpa and tkip encryption.
As soon as I use wpa2 and aes encryption I get disconnections when downloading.
gs3 said:
This isn't a sleep issue though. I have wifi set to always on keep wifi on during sleep.
Even the op said he tried leaving the screen on.
I set screen timeout to 10 minutes so I can monitor the application and also set screen on within adownloader and I get disconnected.
The only fix for me is using wpa and tkip encryption.
As soon as I use wpa2 and aes encryption I get disconnections when downloading.
Click to expand...
Click to collapse
Well, probably a hardware issue. I have no issues using the same wifi configuration and downloading torrents. And like I said..it really doesn't matter if you have keep wi-fi on during sleep checked. That doesn't matter at all. The performance will degrade so much when the phone is asleep that you might as well have it turned off. No, your wi-fi won't sleep, but it won't be running anywhere near its top performance, which is what the widget is for.
Wow. I have been trying to solve the same problem for last 2 weeks. upgraded windows drivers, router firmware, tweaked utorrent settings and whatnot. finally after reading your answer i changed my wifi authentication from wpa2+aes to wpa+TKIP and WOW. it worked. my wifi is not dropping anymore. I dont why WPA2+AES should cause this problem. BUt this tweak in authentication has finally worked for me.
Hi,
I've tried disabling WIFI powermode (which I do everytime I reboot), but my wifi seems pretty flaky. Speed is great, but it sometimes disconnects (not THAT often).
I have two APs, both set on same channel / SSIDs etc. Looking at wifi analyzer, it seems like the phone doesn't really handle switching between APs very well.
Is there a kernel or mod that would help with that? Or perhaps a better way to set my APs? (DD-WRT and Tomato, all 2.4G). Should I try the modems or is that just for cell network performance?
Especially annoying when using Talkatone or Skype to phone someone and then it drops in the middle of a call.
Thank you!
Setting to AP's within range of each other to the same frequency is asking for trouble.
Having them both broadcast the same SSID more so.
The kernel handles Wifi-related stuff, modem is only for cell communication.
Wifi has no handover protocol such as 2G/3G/4G does, so you'll stay connected to an AP until you loose the connection and then reconnect through the whole connection protocol (including Handshake, Authentication, DHCP, ...) on the next one. So it's a pretty bad protocol for moving around with a constant data stream.
I was under the impression I HAD to have them use the same SSID since this AP is there to extend the range of my home wifi (as per: dd-wrt WAP website I can't post link to since I'm a noob), I'll try setting them to channels 1&11 see if it gets better...
I had issues at work. But not at home.
Today I told it to forget my B/G radio and to connect to the N radio. No disconnects, none..
No changes made to the phone at all..
I have had a Netgear Powerline Adapter system set up in my Bedroom (XAVNB2001) for the past year and a half, because the signal from my Cisco E4200 doesn't effectively reach up there. It has its own SSID, on the 2.4GHz band. It has been completely solid and reliable, and I use it all the time with my Verizon Samasung Galaxy Nexus (stock ROM 4.2.2), and Asus Infinity Tablet (stock ROM 4.2.1). My wife also used it without problem with her prior Motorola Droid 3.
But for reasons I can't identify, my wife's new Galaxy S4 won't connect to it. Also Stock ROM 4.2.2. Her phone sees the Adapter/SSID, and shows a strong signal when we're up there. I enter the passcode with the same encryption (WPA/WPA2 PSK) as I have on the other working devices, and it quickly goes to "Acquiring IP" but this never completes. It tries a couple of times, and usually ends up saying: "Network Disabled Because Internet Connection Is Slow." But it is not slow - works as fast with the other devices as when I'm connected to the Cisco downstairs near the Router. I have carefully entered the passcode (checking the box to show the characters to make sure I'm not putting in a typo) a dozen times.
There is no problem connecting her S4 to any other WiFi network we've encountered (to the Cisco downstairs directly, at my kids' houses, hotels, etc.).
I can't see any trouble-shooting steps to even identify the problem. Usually this is a no-brainer: you see the SSID, enter the passcode, and you're in. What could possibly be the problem here??
DLCPhoto said:
I have had a Netgear Powerline Adapter system set up in my Bedroom (XAVNB2001) for the past year and a half, because the signal from my Cisco E4200 doesn't effectively reach up there. It has its own SSID, on the 2.4GHz band. It has been completely solid and reliable, and I use it all the time with my Verizon Samasung Galaxy Nexus (stock ROM 4.2.2), and Asus Infinity Tablet (stock ROM 4.2.1). My wife also used it without problem with her prior Motorola Droid 3.
But for reasons I can't identify, my wife's new Galaxy S4 won't connect to it. Also Stock ROM 4.2.2. Her phone sees the Adapter/SSID, and shows a strong signal when we're up there. I enter the passcode with the same encryption (WPA/WPA2 PSK) as I have on the other working devices, and it quickly goes to "Acquiring IP" but this never completes. It tries a couple of times, and usually ends up saying: "Network Disabled Because Internet Connection Is Slow." But it is not slow - works as fast with the other devices as when I'm connected to the Cisco downstairs near the Router. I have carefully entered the passcode (checking the box to show the characters to make sure I'm not putting in a typo) a dozen times.
There is no problem connecting her S4 to any other WiFi network we've encountered (to the Cisco downstairs directly, at my kids' houses, hotels, etc.).
I can't see any trouble-shooting steps to even identify the problem. Usually this is a no-brainer: you see the SSID, enter the passcode, and you're in. What could possibly be the problem here??
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You could try creating a static IP address using the MAC of the GS4 on your Cisco router. It sounds like it's authenticating, but unable to assign an IP for whatever reason.
Disable WiFi Multimedia (WMM) or the equivalent... BOOM! should work fine.
Also, if it's a MAC filter issue turn your MAC filtering off. If that is the issue your GS4 will connect instantly once MAC filtering is off.
Thanks for the replies.
I assigned a Static IP to the GS4 through the Router without difficulty. I then went to the GS4's settings for this SSID, changed it to Static IP, entered the assigned IP, kept the Gateway as 192.168.1.1, and changed the DNS settings to what is shown through IPCONFIG when I check my Desktop.
It now connected, but shows a DNS error when trying to go to a given website. So something funky is going on there. The phone shows a setting for "Network prefix length" and has a value of 24 - I've not encountered this before - should there be a different setting here?
There is no MAC filtering enabled, so that's ok.
"Disable WiFi Multimedia (WMM) or the equivalent" - where is this setting located? I don't see anything along those lines on the Phone, or in the Router's program??
DLCPhoto said:
Thanks for the replies.
I assigned a Static IP to the GS4 through the Router without difficulty. I then went to the GS4's settings for this SSID, changed it to Static IP, entered the assigned IP, kept the Gateway as 192.168.1.1, and changed the DNS settings to what is shown through IPCONFIG when I check my Desktop.
It now connected, but shows a DNS error when trying to go to a given website. So something funky is going on there. The phone shows a setting for "Network prefix length" and has a value of 24 - I've not encountered this before - should there be a different setting here?
There is no MAC filtering enabled, so that's ok.
"Disable WiFi Multimedia (WMM) or the equivalent" - where is this setting located? I don't see anything along those lines on the Phone, or in the Router's program??
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I'm not sure about Eric214's suggestion, but it sounds like it could help. Regarding the static IP, if you set it on the router, the phone should pick it up automatically without you needing to enter it manually. After you set the static IP on the router, does the phone still hang on Acquiring IP? If you HAD to manually enter, you could plug in the DNS address coming straight from your router, or Google's open-dns of 8.8.4.4 and 8.8.8.8 (I think that still works.)
ttupa said:
I'm not sure about Eric214's suggestion, but it sounds like it could help. Regarding the static IP, if you set it on the router, the phone should pick it up automatically without you needing to enter it manually. After you set the static IP on the router, does the phone still hang on Acquiring IP? If you HAD to manually enter, you could plug in the DNS address coming straight from your router, or Google's open-dns of 8.8.4.4 and 8.8.8.8 (I think that still works.)
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I tried it before, but tried it again - with the Static IP set up on the Router (using the "DHCP Reservation" option in the Router's program), and the Connection Settings on the GS4 for this SSID set to DHCP, all advanced settings at their default, it behaves the same way: Shows Acquiring IP, tries it twice, then shows the message I quoted above.
The Router remains set at Automatic Configuration/DHCP overall, with DHCP Reservation used to create a Static IP for this phone's MAC address. If this isn't the proper way to do this, let me know.
And with the Phone Settings for this SSID's WiFi set to Static IP, and the info entered as above, it quickly connects, but doesn't gain internet access.
It shouldn't be this hard. This is usually a no-brainer, as I first indicated. What is so different with this phone's WiFi setup??
I appreciate your input!
DLCPhoto said:
I tried it before, but tried it again - with the Static IP set up on the Router (using the "DHCP Reservation" option in the Router's program), and the Connection Settings on the GS4 for this SSID set to DHCP, all advanced settings at their default, it behaves the same way: Shows Acquiring IP, tries it twice, then shows the message I quoted above.
The Router remains set at Automatic Configuration/DHCP overall, with DHCP Reservation used to create a Static IP for this phone's MAC address. If this isn't the proper way to do this, let me know.
And with the Phone Settings for this SSID's WiFi set to Static IP, and the info entered as above, it quickly connects, but doesn't gain internet access.
It shouldn't be this hard. This is usually a no-brainer, as I first indicated. What is so different with this phone's WiFi setup??
I appreciate your input!
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That sounds exactly right to me, and you're right that it shouldn't be that difficult. I've heard others report of miscellaneous routers that don't play nice with our phone. In this case, it's an AP, but that might still be the issue. I haven't personally experienced the problem, so hopefully someone else can chime in who has.
ttupa said:
That sounds exactly right to me, and you're right that it shouldn't be that difficult. I've heard others report of miscellaneous routers that don't play nice with our phone. In this case, it's an AP, but that might still be the issue. I haven't personally experienced the problem, so hopefully someone else can chime in who has.
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Does anybody else have any ideas here?
I have also posted on Netgear and Verizon's forums, but am not expecting too much from either of these. I'm putting my money on the expertise here at XDA!
WMM is listed under the advanced settings of your router, it's not phone based but in your router. Disable it and return your other settings to normal and it should fix your problem.
Eric214 said:
WMM is listed under the advanced settings of your router, it's not phone based but in your router. Disable it and return your other settings to normal and it should fix your problem.
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I'll have another look in the morning but earlier today I looked through every page of settings and didn't see anything that looked or sounded like this.
What section or function might you expect it to be found? What else might it be called?
Thanks.
Advanced settings in your router.
Basically, the 802.11n spec requires devices to support 802.11e (Quality of Service [QoS] enhancements for wireless LAN) in order to use HT (High Throughput) link rates, i.e. higher than 54 Mbps. (WMM is a subset of 802.11e that was created by the Wi-Fi Alliance as a stop-gap measure while 802.11e made its way slowly through the IEEE review process.)
The point is this is an issue for the GS4 as it's either firmware related or a Samsung issue they didn't realize they caused. Point being, if you have constant disconnects to your router, disabling WMM should make your connection "stick". At this point its what you may have to do until a firmware update for the router is released or Samsung releases an OTA update fix. Unless you're rolling 3+ devices at the same time streaming content you shouldn't have an issue running 54mbps. I stream full HD content to 2 devices at the same time with no lags or decompression issues at 54mbps.
As long as your phone has a static IP from the router there is no reason to set the DNS on the S4...the router does all the DNS routing for your devices. Hopefully that'll fix your DNS error issue.
Sent from my SCH-I545 using Tapatalk 2
OK - had another look at the Router settings, and found the WMM option in the QoS section. I somehow overlooked that yesterday. I'll try this out later today when I'm at home.
Eric214 - with respect to this WMM setting, I have a Panasonic SmartTV, and stream Netflix, Amazon Video, Vudu, etc. and can get the highest quality (1080p) through these. Is changing this setting going to impair throughput for this purpose?
chrishoyt2012 - after changing to Static IP, if I did nothing on the phone (that is, kept it at DHCP), it didn't fix the problem. I then selected Static IP on the phone, which necessitated inputting DNS. There were DNS server entries there by default, and these didn't work, so I manually changed them to my ISP's DNS that are used on my Desktop.
What should I be doing in this regard, other than what I have tried above?
Thanks!
Well, I disabled WMM Support, but nothing changed. It still failed to get an IP Address, same as I described in my original post.
No replies in the other forums either.
I'd really like to get this going - I'm also considering getting the S4, but this may cause some second thoughts...
I went into the Netgear Adapter's setup program, but couldn't fix the problem there either.
I tried different Channels, and a few other settings changes, but no joy.
There was a WMM setting there, but it was checked, and greyed out, so I couldn't try unchecking it even if I wanted to. I disabled WMM on the Router again, but this option remained unavailable on the Adapter's setup program.
I went into my Router, and deleted the IP address for the S4, to try and 'reset' it, but still no change. The S4 shows 'failed to acquire IP' every time.
Any other ideas?? I also tried my daughter's Razr HD, and it connected fine, just like the others. What is so different about the S4's WiFi connectivity??