[Q] Help problem with Wifi conects but no Internet - Galaxy S III Q&A, (US Carriers)

OK so I have T mobile version Galaxy S 3 phone is rooted (stock ROM)
WiFi was working properly except that sometimes when I had few devices connected to my router it didn't want to connect , but I have always experienced that problem with android on my HTC Evo and My touch 4g, it seems that when you connect to a router and disconnect and another device connects the phone tries to connect using the old IP which is now used by the other device.
its annoying but biggest problem now with the S 3 is that 2 days ago the phone will connect to the router at least it shows the WiFi icon on the status bar and on the wireless and network info ( connected ) but once I try to open a web page or app like Facebook it will show no connection, Kies air doesn't even recognize that there is a WiFi connection.
I have tried looking around on this forum and on google and have seen other people with same problem but no solution at all.
any ideas anyone?
I have tried forgetting the connection, restarting phone router, modem.
and other devices including my old phones work.

If your getting the same problem with different phones then the problem must be with your router. It seem that it only allows a certain number of devices to connect to it.

No, other devices and phones are working properly, problem is only on the SG3 100% sure not router problem at all , I am thinking something about the WiFi info on the phone got corrupted or something I guess I will try factory reset and wipe everything.

Well for future references, I had to do a full wipe ( data, dalvik, cache) and its working now as intended.

anyone experiencing this problem with galaxy s3 wifi connection after I reset my device it started working again but now after a few days the issue is back, have Wifi ICon on status bar but no connection to the internet at all, this is only happening with the S3 , evo 4g , mytouch 4g, laptop and desktop work without any problems.

Ok finally found the solution without the need of resetting the device. had to use static ip on my phone...
long click network connection , modify network config, show advance options, "ip settings = static" assign an ip and if u need help finding other info as gateway, dns servers etc..
on windows run "cmd" and ipconfig /all

Related

[Q] Home wifi suddenly not working right with archos 70

I have recently returned to my apartment with my brand new archos 70. I use WPA2-PSK encryption for my wifi network. at first everything was golden, I could browse the web and whatnot just fine. as of a few days ago, wifi has not been working correctly. my device connects to the network (pulls an ip address from the router) but when I try to browse web pages or open web based apps they hang up and act as if I have no connection. it works fine on other networks (to limit the problem to my network) I have tried doing a factory reset of the device, tried power cycling my router and modem with no luck. I have also changed encryption types to no avail. i have the latest firmware for the gen 8 series. also from time to time during this session of events, sometimes it will connect to the router, then disconnect and reconnect. I have no clue whats going on because I havent changed any router settings since I got back. the only other devices on my wifi network are two laptops. any help would be appreciated.
you mean you restored to the factory settings ran through the start up all over again and it still won't connect to your router? have you tried any other types of connections or routers?
I had this problem just the other night was this close to reformatting the whole thing. but I solve the problem by turning the device off, then holding the reset button while it rebooted to turn it off again, an reinitializing the drivers.
how do you reinitialize the drivers? I did a factory wipe. and it connects, it shows as having network connectivity (even my router lists it as a dhcp client and currently making use of the access point) but no internet functions work. ive connected to other networks fine.
This happened to me when I first got my A70. What I had to do to fix it (after getting incredibly pissed, reformatting twice, and almost returning the thing) was to set it up to use a static IP address on my home wifi network. Don't know if it'll solve your problem, but it works beautifully for me and I'm able to enjoy the device now.
Just remember to uncheck "use static IP address" when you get on other wifi networks.
well, I set up static addressing, gave it a private ip, set up the gateway and dns, and it still wont connect to anything.
If set as wireless N, set as N+G or G only, latest firmware may have trouble connecting to wireless N networks.
na, I dont have it set to n, I have it set to auto which I believe puts it to g with my archos. thing is, it used to work. now it suddenly has problems.
Im beginning to wonder if the archos tablets are just picky about wireless routers. I wouldnt think so...
Upgrade the firmware
Archos published a firmware upgrade to solve this problem (December 2010). The related bug in the release notes is...
Wi-Fi: fix Wi-Fi stuck after a while when using WPA2/AES encryption mode
The new firmware download link is in the Archos website.
you can download the firmware to your computer, copy it to the root directory of the tablet using the USB cable, and run the upgrade process in the tablet.
... or you can use another WiFi network (without WPA2/AES) and download the update in the same tablet
Note: I cannot send the links, however you can use the information to search the links in the internet.

[Q] WIFI connection stops transfering data

Hi, is anyone has the same problem? When I'm connected at home to my Tenda router (WIFI b/g/n) after cca 30 min. my phone WIFI stops sending and recieving data, Skype is offline, etc... but WIFI in phone is stil switched on. After I switch WIFI off and back on (on my Samsung, not on my router), everything works good for a while and after cca 30 min. is situation the same. Is there in Samsung any WIFI sleep mode or something like that? Or some settings, which is not visible? Any other suggestions? Sorry for my poor English. Thanx in advance.
I'm having the same problem. But I did a factory reset and it works fine afterward.
And just few hours ago, I encountered this problem again. What did to get this error was, I pressed "on samsungapps" and it failed to update and thus results wifi connection stopping. What about you? Also my Kies air is not working.
are you guys sure you have wifi sleep policy set correctly? just to be sure, settings, wireless, wifi, menu button, advanced, wifi sleep policy to NEVER.
Yes. And also even if i manually disconnect and reconnect the wifi back. The data still doesn't come in. It is stated there as connected but no data at all.
Somehow Wifi keeps searching every few seconds, even thought it's connected.
This is bound to cost in battery life too.
I have reseted router to default settings, disabled n mode, disabled security (only mac filtering is on), disabled all unnecessary features and PROBLEM IS SOLVED !!! Thanx God Tomorrow I will experiment with router settings to know, what was causing this error ;-)
Well at least u're connected, I'm facing the same problem as the thread starter. No data flow at all. Browser showing me offline msg. I had the same problem on the 1st day with the phone after I woke up. previously playing with most of the default aps. So i'm not sure what went wrong, did a factory reset and it works fine.
Until, few hours ago, I tried my kies air which didn't work. Browser couldnt load the address given. And I thought i had an outdated kies air, so i went to click on samsungapps, which failed to update me. At that point the wifi is still working, i leave my phone for about 30 mins, and when i came back. The same problem which happened on the 1st day came back. I was hoping to find an answer here so I didnt do the factory reset it. On another note, the phone wifi works after restart, but wouldn't last.
Edit: The wifi works after i resetted my modem to default. oh well. at least that solved it.
lukecz said:
I have reseted router to default settings, disabled n mode, disabled security (only mac filtering is on), disabled all unnecessary features and PROBLEM IS SOLVED !!! Thanx God Tomorrow I will experiment with router settings to know, what was causing this error ;-)
Click to expand...
Click to collapse
Hi,
Did you find out what setting was causing the connection issue? I also have this problem with my Tenda router. I thought it might be the wireless N, but disabling that doesn't fix it. I have a wireless distribution system set up with other tenda routers so didn't want to disable all the settings to troubleshoot if i can help it!
Thanks
spen2 said:
Hi,
Did you find out what setting was causing the connection issue? I also have this problem with my Tenda router. I thought it might be the wireless N, but disabling that doesn't fix it. I have a wireless distribution system set up with other tenda routers so didn't want to disable all the settings to troubleshoot if i can help it!
Thanks
Click to expand...
Click to collapse
I have the same problem, my router is N and the conection between SGS2 and my router is bad. Any idea?
Same problem here, I'm running WZR-AGL300NH in access point connected to my Ubuntu Server. Everything else works in the house just fine but SG2 stops transmitting data after a while.
I recently upgraded to KF1 firmware (and unknowingly wiped out whole phone, being on the bleeding edge and that didn't seem to help.
I would very much appreciate all tips because this problem is very annoying!
Additional Info:
- Buffalo is running latest firmware
- Authentication WPA2-PSK
- Encryption AES
paranoidi said:
Same problem here, I'm running WZR-AGL300NH in access point connected to my Ubuntu Server. Everything else works in the house just fine but SG2 stops transmitting data after a while.
I recently upgraded to KF1 firmware (and unknowingly wiped out whole phone, being on the bleeding edge and that didn't seem to help.
I would very much appreciate all tips because this problem is very annoying!
Additional Info:
- Buffalo is running latest firmware
- Authentication WPA2-PSK
- Encryption AES
Click to expand...
Click to collapse
Same symptoms here. Cisco DDR2200. WPA2 PSK. Haven't tried fiddling with the router yet.
This seems to be a common problem. Anyone knows of a definitive fix?
Bump...I have the same problem and the issue persists even after i reset the phone
Sent from my GT-I9100 using XDA App
Glad I found this, thought it was the ROM I had flashed to the phone (which is VillainROM)
I keep losing connection from my phone via wifi like everyone else in this thread
edit: I've just assigned my phone an IP address via my routers settings and I can connect to the net again
Also when it wasn't working, I couldn't ping the phone. When I assigned the IP just now I still couldn't ping it.
When I did a tracert to it, I could get to it when the IP was assigned and when it wasn't.
I have no removed the assigned IP for the phone from the router. Wifi connection is still working after disconnecting/reconnecting wifi on the phone.
I can also now ping the phone, where as before it was getting timeouts.
Also when it wasn't working the first time when I did a tracert it was showing up as HPsomething (didn't make note of the numbers)
this time when it is working it's just showing up as the IP address when doing a tracert.
Another update:
Just checked my printer, it has an IP address manually set on it, which at one stage when the phone wasn't working for internet it had the same IP as the printer, hence when tracert'ing it I was going to the printer instead of the phone and getting the HP etc back.
When it wasn't working at that time and looking at my routers DHCP list, it had the MAC Address of the phone against the IP that the printer has....
So I've got some issues with how my own network is setup ^_^ which looks like is causing me grief.
So the issue is with DHCP? Setting a static IP fixes it? I'll have to try, but I doubt this is a problem with the network, as all my other devices use DHCP without this problem.
I have the exact same problem!!
It's really annoying.
i was having problems with wifi too.. it keeps scanning and checking, etc, signal dropping for no reason..
fixed mine..well for me it worked
backup ur phone ( i dont take responsibility if ur phone catches fire or dies or chases u around )
u need to be rooted
download FXR WiFi fix and rescue from market
and just run the app.
now my wifi signal stays constant speed and i get good speeds
alternatively try
WiFi Fixer
both of them will cause high battery usage..i think since it keeps the signal at maximum.. so only enable wireless when i need it or use juice defender or green power.
greenpower seems great. using this at the moment

[Q] wifi problem questions on sg2

Hi all.
A per my post in this thread. http://forum.xda-developers.com/showthread.php?t=1117077
Code:
Hi all. I also have weak signal problem as well as fon router issue. The signal strength isn't as bad as being mentioned above, but still could be better.
But with my fon I can connect and connection is as showing connected, but I can't browse or have any connection to Internet whatsoever. When connecting to fon both lights on the router start flickering like normal and once connected when browsing or going to market for apps just one light blinks, when both should under normal activity.
Also I get this error message " a network error has occurred. retry or cancel and return to previous screen." when I try going to market.
I've tried setting security to none and wpa and still same no net.:confused:
Now some personal thoughts with experience with Linux and wifi. I think the problem is with driver or the firmware of wifi card on GS2. I had netgear card even thought it was claimed to work with Linux it kept on overheating and dropping connections with weak signal and every time I had to patch it to make it work properly, Many have reported same issues with other devices with Linux when it was claimed that devices should be working but were not.
My question is there anything I can do other than I haven't so far to check the problem why am not getting Internet through my fon router? Or any other checks I can do other than wifi tools I downloaded?
Thanks
coolfi said:
Hi all.
But with my fon I can connect and connection is as showing connected, but I can't browse or have any connection to Internet whatsoever. When connecting to fon both lights on the router start flickering like normal and once connected when browsing or going to market for apps just one light blinks, when both should under normal activity.
Thats the router not the phone .
Set router to no security or passwords .
DELETE ROUTER WIFI FROM PHONE REBOOT AND RESET UP WIFI .
JJE
Click to expand...
Click to collapse
Hi, I've tried that still the same problem.
And it's not the router since every other device connects to it and many laptops and computers, without any problem.
Like I said I've tried it with wpa wep and no security just open, and still no Internet, even though it's showing as connected with signal bars at the top of the phone.
I've tried the phone with friends routers and it works on those. But not with mine which is Fonera.
Does anyone know what chip is used for wifi in these phones?
In case anyone else is wondering it's Samsung's own brand.
manufacturer=Samsung Electronics
device_type=1-0050F204-1

[SOLVED] Galaxy Ace connected to Wi-Fi but no internet.

Well, the title says pretty much all .. I earlier didn't have this problem.. Then since last night, I came back home and connected my Galaxy Ace to my home wifi, but this time, it wasn't transferring any data.. It would be connected, full signal, but no internet connection.. My browser, gmail, YouTube, PlayStore, nothing would load.. It'd keep saying Connection Error. Retry.
My wifi works properly on the computer and other devices, and my phone used to work perfectly too! Why's it suddenly giving this problem?!
Any solutions!?
SOLVED!
Okay so I figured it out on my own!!
I went to Wifi Settings>> Advanced>> and "Use Static IP"
I then provided my phone with an IP address, gave the DNS servers as mentioned by my Router, and gateway, is ofcourse, the IP adress of the router. NETMASK is Subnet mask ..
Once I filled in them correctly, and as per my router settings, my mobile is now transferring data and I can now access the internet!
Just thought I'd post a reply incase anyone else was facing this problem
No data through laptop hotspot.
I have a similar problem, but with using my laptop as an access point. My Samsung Galaxy Ace had no problem connecting to either my or my wife's laptop access points initially till about a week ago. I use an HP while my wife uses a DELL. We both run Windows 7. But, here's when things started to get strange.
1. The Ace even though connected through my laptop's AP Wi-fi cannot send or receive data after the first few seconds.
2. My wife's Dell XCD35 (ZTE Blade) has no problems.
3. The Ace has no problem connecting to an Android AP or my wife's laptop AP.
I reflash and unrooted my phone and basically brought it back to factory settings but no luck.
Tried using other services for using my laptop as an accesspoint - mhotspot, virtual router and connectify - still no luck.
tried static ip - no luck.
reinstalled the MS Virtual Wi-fi Miniport Adaptop driver - no luck.
Somehow, there is a security setting on the laptop that's preventing my phone from connecting to the internet. I think I maybe connected to the network, but access to the internet is restricted.
There are no other features like MAC address binding or anything like for laptop APs.
It's getting really frustrating now.
Any help would be appreciated.
lobotomy said:
I have a similar problem, but with using my laptop as an access point. My Samsung Galaxy Ace had no problem connecting to either my or my wife's laptop access points initially till about a week ago. I use an HP while my wife uses a DELL. We both run Windows 7. But, here's when things started to get strange.
1. The Ace even though connected through my laptop's AP Wi-fi cannot send or receive data after the first few seconds.
2. My wife's Dell XCD35 (ZTE Blade) has no problems.
3. The Ace has no problem connecting to an Android AP or my wife's laptop AP.
I reflash and unrooted my phone and basically brought it back to factory settings but no luck.
Tried using other services for using my laptop as an accesspoint - mhotspot, virtual router and connectify - still no luck.
tried static ip - no luck.
reinstalled the MS Virtual Wi-fi Miniport Adaptop driver - no luck.
Somehow, there is a security setting on the laptop that's preventing my phone from connecting to the internet. I think I maybe connected to the network, but access to the internet is restricted.
There are no other features like MAC address binding or anything like for laptop APs.
It's getting really frustrating now.
Any help would be appreciated.
Click to expand...
Click to collapse
Set your Internet to "Allow other computers to share this Internet connection". Other ideas would be to check/disable your firewall
Wifi connected but not working
My Galaxy ace plus connects fine to wifi network but cannot browse internet or play store. I am using a free public wifi so i dont know about the static ip address. And this problem was from the starting whn i just bought it. So is there any other solution for this problem or not?
I tried everything... I restarted the modem- no luck. I filled in the blank from the advance wifi setting- no luck

Problems connecting to some wifi networks (GT-i9100M)

Hey all,
I've had my Galaxy S II GT-i9100M for a bit more than two months now. It's been on ICS 4.0.3 since the first day I got it, and is unrooted.
Wifi was working fine the first month or so that I've had it. However, in the last month, while trying to connect to my university's networks from the wifi settings screen, it will display "connecting" for a long time, then change to "saved", without successfully connecting to the network. Odd thing is, if I turn the wifi on and off repeatedly, it may connect eventually, with around a 5-15% success rate each try. However, there's also a relatively high chance it will automatically disconnect itself within a few minutes.
The school has three main wifi networks: one is unsecured, while two are secured with exactly the same authentication methods (PEAP + MSCHAPv2) and takes the same login credentials. All three have the same problem when I try connecting. It's not a problem with signal strength, either, since my friends nearby can connect using their phone or laptop without any problems.
Here's what I've already tried to do to fix this:
Asked the school's IT helpdesk
Forget both secured networks so the phone can autoconnect to the unsecured one
Tried wifi diagnostic tools, such as Wifi Analyzer and Wifi Fixer, and tried changing to a better channel
Deselected "back up my data" in the Back Up and Reset settings screen, deleting existing wifi settings from Google's servers
Connect using a static IP address rather than DHCP. Either it has the same Connecting->Saved issue, or says something about "avoided a poor connection"
Did a factory reset, including wiping all user data
The wifi has no problems connecting to my home wireless network, and to most, though not all, other public networks I've tried (same problem as above if it doesn't work).
On a somewhat different note: there are two networks (each of which I've only connected to once at most) that are permanently saved on the list of access points; there's actually no way to forget/delete the network. They even survived the hard resets, and are listed before I link the phone to my Google account. Could this be related to the main issue above?
Is there a fix for this issue? Thanks in advance for any suggestions!

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