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
(April 24th, 2015) After searching for a solution to my wifi dropping I collected a comprehensive list that has helped in one way or another. After seeing similar issues on S5 phones it appears this isn't solely a S6 problem. If you find or have used a method not on the list please report and I'll add it.
Possible fixes for Galaxy S6 WiFi problems:
Factory Reset
“Forgetting” your Wifi Network and Reconnecting
Settings ->Wi-Fi. Hit menu then Advanced. Make sure Keep Wi-Fi on is set to Always.
Settings, more networks, mobile network, uncheck Connection Optimizer
Under the Wi-Fi settings uncheck "Smart Network Switch"
Resetting the Modem/Router
Settings→wifi→WPS Button and same button on modem/router to 'lock on'
Switching from DHCP to Static Connection on Phone
Connect to your router's 2.4GHz band instead of 5GHz
Install a DNS changer app, select primary/secondary servers to Google or yandex.
Changing the Router Bandwidth Settings
Changing the Router’s Broadcast Channel
Adjusting the router security settings to WPA or WPA2
Enable WMM in your router settings
Disable IPV6 in your router settings
Calling your ISP and upgrading to a Higher Bandwidth/Speed
Wipe phone cache
1) Power off the Samsung Galaxy S6
2) Hold the power off, volume up and the home button all at the same time
3) After some seconds, the Galaxy S6 will vibrate once and the recovery mode is started
4) Search for the entry called “wipe cache partition” and start it
5) After a few minutes the process is complete and you can restart the Galaxy S6 with “reboot system now”
Disable phone's wifi power saving mode
1) Open your phone dialer
2) Enter *#0011#
3) Select more (top right)
4) Select WiFi
5) Turn off WiFi power save mode(enabled by default)
6) Exit and hopefully your WiFi connectivity issues will no longer be a problem
Click to expand...
Click to collapse
(April 11th, 2015) Anyone experiencing wifi dropping out? It seems to happen when I require it, ie browsing themes or downloading apps. It will lose wifi and the lte icon appears and the screen freezes temporarily until wifi is restored. Last night this happened like 6 times one after another which wasd very annoying.
WiFi working petectly fine connected to my as router
Sent from my Samsung Galaxy s6 Edge
Yes, I am having the same issue. WiFi drops out, screen freezes and then WiFi comes back and everything works again :/
It seems to have settled down a little now, only seems to happen when there is quite a bit of WiFi activity.
It kept happening to me while I was downloading a GPS map and also when syncing Spotify.
I am connected to a 5GHz AC router, what sort of connection are you using?
Yes,
My device has also done this also around 4 - 5 times and i was thinking could it be Smart Network Switch which is on for me.
i have also noticed the wi-fi has dropped out for when the phone is asleep and i awake it.
`````If smart network switch is enabled, your device will be connected to a mobile network automatically when the Wi-Fi connection is unstable. `````
Master2k5 said:
Yes,
My device has also done this also around 4 - 5 times and i was thinking could it be Smart Network Switch which is on for me.
i have also noticed the wi-fi has dropped out for when the phone is asleep and i awake it.
`````If smart network switch is enabled, your device will be connected to a mobile network automatically when the Wi-Fi connection is unstable. `````
Click to expand...
Click to collapse
I don't have Smart Network Switch enabled, so it isn't that for me.
My WiFi always stays connected through sleep though.
What sort of connection are you on? G/N/AC/2.4GHz/5GHz?
IakobosJ said:
I don't have Smart Network Switch enabled, so it isn't that for me.
My WiFi always stays connected through sleep though.
What sort of connection are you on? G/N/AC/2.4GHz/5GHz?
Click to expand...
Click to collapse
i am on a 5GHz BT hub 5
My Smart Network Switch is off and I'm in the same room as my router so signal or the setting isn't the issue. Anyone using a Sprint Airsve in-home signal booster?
Liksys E4200 802 11 N router
I'm going to a friend's house later and will see if the same issues occur on his network.
I'll be able to do some tests at work tomorrow.
I haven't had it happen today at all :/
I downloaded Angry Birds Space 3 times this morning and no wifi drops. I was on the road and something locked up where I couldn't swipe between home screens or open the app drawer, noted I had wifi on even though I was in the car outside of a network. Didn't get to test the wifi at my friend's house but just tried downloading AB again and wifi dropped out.
This is getting annoying. Thinking I might see about going in to BB to exchange, this isn't a glitch I can live with or risk being a hardware defect. I plan on contacting Samsung to make sure they make a note, hopefully they are aware of this.
Galaxy S6 (not the edge.) Same issue. Wifi drops. Music stutters. Have to turn wifi off and back on to reconnect. Using Apple airport express.
Same thing here with galaxy s6 edge. Wifi keeps dropping out. Web pages too slow to load.
Will return the phone tomorrow.
Sent from my SM-G900W8 using XDA Free mobile app
Jesus, these phones are gitchy as all hell. I get mine Thursday. Going to mess around with it for a week and if I keep having these same problems I'm just going to return it and move to something else. I've never seen soo many issues with a new phone in both software and hardware.
If anyone can test other wifi networks or exchange phones, please report back with results.
Googling turned up a similar problem people had with the S5, some found fixes while others didn't.
http://forums.androidcentral.com/sa...msung-galaxy-s5-constantly-dropping-wifi.html
Another link lists some speed fix options for the S6
http://recomhub.com/blog/how-to-fix-samsung-galaxy-s6-slow-wifi-problem/
How to Galaxy S6 slow WiFi problems:
Factory Reset Galaxy S6
“Forgetting” your Wifi Network and Reconnecting
Resetting the Modem/Router
Switching from DHCP to Static Connection on Phone
Switching DNS to Google’s Addresses on Phone
Changing the Router Bandwidth Settings
Changing the Router’s Broadcast Channel
Adjusting the Modem/Router Security Settings and even Disabling Security
Calling your ISP and upgrading to a Higher Bandwidth/Speed
How to fix slow wifi on Galaxy S6:
Power off the Samsung Galaxy S6
Hold the power off, volume up and the home button all at the same time
After some seconds, the Galaxy S6 will vibrate once and the recovery mode is started
Search for the entry called “wipe cache partition” and start it
After a few minutes the process is complete and you can restart the Galaxy S6 with “reboot system now”
Click to expand...
Click to collapse
I tried a few of those, others aren't necessary. I did 2 factory resets and the wifi was fine downloading 54 apps but dropped at the last one, and lasted all 55 but dropped later. I'm going in for an exchange tomorrow unless someone posts a magic fix.
The Recomhub website helped me fix my WiFi dropping problem. Thanks for the link, it really solved my issues!
5GHz Network
I've been testing this, because it is really annoying me now.
When I am connected to my 5GHz AC Network at home it drops out and freezes the phone quite a bit.
When I am connected to my 2.4GHz N Network at home, there is never an issue. Wireless actually seems to work better on this network.
So, for me at least, this problem is being caused by the 5GHz networks and switching back to 2.4GHz makes the problem go away.
This is an annoying bug, I have emailed Samsung about it, let's see if anyone replies.
My router is Simultaneous Dual-Band N (2.4 & 5 GHz) so I wonder if that is causing my issues. No idea how to remedy it at the moment.
rank78 said:
My router is Simultaneous Dual-Band N (2.4 & 5 GHz) so I wonder if that is causing my issues. No idea how to remedy it at the moment.
Click to expand...
Click to collapse
Mine is too, but I have the ability in the router to separate the two networks, so my 5GHz network has a different SSID than the 2.4GHz one.
I've been connected to the 2.4GHz network all of tonight and done quite a bit of downloading to test it and it hasn't dropped out once, yet on 5GHz it would have done it at least twice already by now.
I cannot replicate this problem at work on the 5GHz Network. It must be something to do with the channels they are set at.
I will try and change some channels on the work network, see if I can get it the same as at home and then test again.
I have a call booked with Samsung who are going to remote my phone, hopefully they can pinpoint something
I can't even connect to my home's 5GHz, the 2.4GHx is what I'm testing.
I went to BB Wednesday and the Samsung rep wasn't aware of any wifi issue or remedies beyond what is mentioned in this thread. Of course I didn't lose wifi the brief time on their wifi network so the guy didn't know what to say other than contact Samsung support.
I tested this at my house last night.
64GB White Edge AT&T on 5.0.2
E3000 router with DDWRT
N700 Router with DDWRT
Both dual band, both running 2.4 and 5 Ghz
Both set to 40 channel width
Both with channels spanned correctly for no overlapping
Never lost connection while downloading and updating all apps throughout about 2 hours of use. Speeds saturated my broadband link (50Mbits/Sec) and never had a problem. However, I don't know about battery drain as I'm brand new and still letting everything settle for another few days before commenting/testing.
Hi,
I have a LG G3 phone. I'm trying to use Guest mode but it doesn't work. Simply, the Cast icon does not appear in any app. Normal cast (when connected to the wifi network) works.
BEFORE YOU ASK
1) I tried everything the FAQ and the Troubleshooting said, including Factory reset, reboot, wifi and data settings
2) It's not only my problem. Other people with G3/G4 have the same problem:
https://www.reddit.com/r/lgg4/comments/3ix6mt/chromecast_guest_mode/
http://forum.xda-developers.com/hardware-hacking/chromecast/guest-mode-doesnt-appear-to-t3089211
https://productforums.google.com/fo...hromecast/category$3Areport-a-technical-issue
3) I investigated and found out this in not Chromecast bug but phone bug. In fact, Chromecast creates two wifi networks with hidden SSID which work as a beacon for the phone. You can't see them in wifi network list, but if you download wifi analyzer you can see them (I saw them with a Samsung Galaxy S4) with SSID '?', which means no SSID, and the MAC address following. Well, I installed wifi analyzer on the G3 and they don't appear in the list.So this means that LG G3 and G4 can't see networks with hidden SSID (whereas all other phones can), and this is the cause of the problem. The bug is several months old. Has anybody got a solution/suggestion?
<Solved> Swift2+ Nougat v7.1.1 WiFi issue
I have a Swift2+ (unmodified) which worked fine under Marmite.
The OTA upgrade to Nougat v7.1.1 seemed to go smoothly, apart from a slight issue recognising the SIM and the SDCard which some fiddling around and a couple of restarts seem to have sorted.
However......The phone is unable to connect to the Internet via WiFi - checked network settings, changed to static address, restarted again - still doesn't work.
Using the Fing app reveals all the other active devices on the local network so the WiFi is connecting.
Looking on the router I can see the phone as a connected device. But the phone insists there is no Internet connectivity.
All the other devices, including various mobile phones, all work just fine.
Moving the Swift2+ away from WiFi range it switches to the 3G network and then insists there is no Internet connection via the GPRS channel. Moving to a friends house gives the same issue with the WiFi at that location.
So the problem is with the phone not the WiFi network.
Any suggestions ?
I've no problems with WiFi, try to wipe data (factory reset) and if it doesn't help contact WileyFox support...
Problem sorted - it was a bad DNS entry on the phone, for some reason stayed the same on static and DHCP until I edited it.
Now all ok.
Hi, I am using Redmi note 3 Kenzo runs on RR ROM Latest Version. In sometimes my device will not provide internet through wifi. It will shows that connected to a network but no internet connection. Same time if i connected to the same network by my other phone or with my Laptop, there is no problem. I can access the internet. After rebooting the phone (Note 3), It will work like normal. Plz help me to solve my problem.
The MIUI update has bugged the 2.4GHZ wifi; it will connect and work on 5GHz, but 2.4 tries to connect - connects and instantly disconnects, despite the wifi status saying it is connected and working.
I found this info under the phones advanced CIT testing menu.
It HAS been reported on the MIUI forums, so hopefully will get fixed soon, until then, I suggest you disable 2,4GHz, so you dont accidentally run up a huge 4G data bill like I have.