Galaxy S 3 no wifi - Galaxy S III Q&A, Help & Troubleshooting

Hi everyone,
6 month ago I baught a Galaxy S3 for my girlfriend and flashed CM11 M12 on it right on the first day. About a month ago the wifi stopped working. That means not only that the device won't connect to wifi networks but the wifi would not even switch on in the first place.
When I go to the settings and click on the switch for the wifi it says "on" but won't show any connections and switches back to "off" after a few seconds.
So I wiped the phone and flashed some different roms (CM10, CM11) but none of those would help either. When I want to activate the device it does not show any wifi connections.
Then I entered the test code *#*#4636#*#* in the dialer app. But there it only shows that wifi is disabled. So that does not help me either.
Do you have any requests?

i got the same problem together with hotspot.
already search the net, and found out it happen after the android version 4.3 upgrade
i still cant find any solution at this time

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[Q] WiFi stops working after 3 minutes

Hi!
Since a few month my WiFi does not work properly. When I activate it, it automatically connects to the access point. But after 3 minutes, the connection stops working. The WiFi symbol in the status bar disappears and 3g starts working. When i disable and reenable wifi everything works fine again for 3 minutes. I already tried a static IP. Other devices (laptop) have no problems with the same network. Any solutions?
Which device are you using?? I have the same problem when i connect to a WIFI network it works for sometime like 2 to 3 min.. then after no data transfer. but in my case it does not get disconnected from the WIFI network.. I am usin samsung galaxy S DUOS.
Even i posted a question here yeterday in the same section.. still nobody replied on it yet..:silly::silly:
Oh totally forgot that. I own a rootet SGS+ (i9001) on android 2.3.6. But I don't think it's device dependend because when I got it everything worked fine.

[Q] Wifi connection problem - Omega rom v35

Hey guys,
Wasnt sure where to post this. Have a question regarding wifi conection settings. I was on omega v34 and everything was fine. My phone connected to all wifi networks I wanted it to. I updated to v35 of the rom and now I have a strange problem.
My phone still connects to my house wifi and work wifi, but refuses to connect to my parents wireless. Ive reset their router, changed the password and removed the settings for the network on my phone. When I refresh and attempt to connect to it all I get is "authenticating" and then it will give up. It is a BT home hub and the strange thing is that my phone will connect to the 'free wifi' BTwifi-with-FON and the BTwifi, but not the proper network zone BTHub3-T2G6. Its incredibly annoying.
Are there any hidden settings in my phone that may have the wrong settings for the network in it?
Any help would be appreciated
EDIT: Just turned the security off on the network and the phone connects fine. I dont understand why the security key would cause problems as it connected before the update and the settings havent changed.
check my sig

[Q] Connected to WiFi but no internet

Hi, I've got an i9300 and since yesterday I dont have internet though I'm connected to WiFi. Last thing I did was playing marvel game and I was updating samsung apps and gamehub, then phone charged off and after I did charge it like for 50% I scanned for an update to see if there is available one, it showed for hours that it is trying to connect to server. My phone is not rooted and it has jelly bean 4.1.2 on it. I've triied to reset it, uncheck network notification and check for internet service. Changed keep wifi on during sleep to never, restarted the router, forgot the connectionand restarted the phone and connected to wifi again, and the *#0011# tip too, also I've tried to config manually connection. Help please.
P.s wifi works on my laptop, motorola razr and galaxy tab 2 very well
Factory reset phone .
jje

[Q] wifi disconnects after few second and cant connect again

Hi guys,
so here is my problem, i have Xperia Z2 with 5.0.2 Android.
Everything worked fine for few months wifi connected automatically to my home network, but yesterday it stopped working. It connects for maybe 5 seconds and then disconnects. When i try to connect i need add password and then it connects for few seconds and disconnects again.
I had the same problem with my old router few months ago. Phone was connecting without any problems for months and then one day it stopped.
It was some old TPLink model, now i have TP Link W8790. The same scenario after few weeks ;(
I havent changed anything in modem settings, the same with phone.
Any other devices like my 3 laptops, and 2 other phones have no problem with connection.
My xperia connects to other networks without any problems.
I was looking for solutions everywhere.
I ve done all resetting device, changing modem settings etc.
Could You please help me with this one?
Which secruity has your Wifi? Did you try changing the password?
Yup, i've done everyting with my router, with reset and change passwords. Encryption is set to WPA-PSK/WPA2-PSK. I discovered today that my phone disconnects with my friend's network as well, but it worked fine few days ago. In fact i remember that I connected with that network and then when I came home, my phone started to disconnects from my network. Both are 2.4Ghz networks. It must be phone issue . It works on 5Ghz with network in my work... but at the same time it cant be 2,4 issue since i connected to AP which my friend created from his phone.. thats crazy. Is there any possibility to reset wifi card on mobile?
Did u try a factory reset on your phone? Did you OTA-Update from your provider or flashed a FTF for 5.0.2
I havent tried to restore fabric setting, I dont think its a solution, because it stopped working one day ( few days after i paired my device with sony wristband swr10, i dont know if it matters) and then after 2 months not working, i changed my router.. worked for 1 month and now the same problem with new router Update came from provider.

Wi-Fi keeps on searching...

Hey guys, happy new year!
Android 6.0, rooted. I frozen lots of stuff on my phone a few months ago, phone woks well. Until now,I needed a wi-fi connection (almost never used it since i have unlimited plan) and when i turned on Wi-Fi it showed a message "wi-fi networks available" but when i open settings it shows "searching for wi-fi networks..." but can't find any. I noticed that it connects just fine to saved networks but can't show a list of available one's. Does anybody know how to fix that and/or what process I possibly froze that is responsible for this issue?
Thanks

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