Help 4.1.2 WiFi not working

rsfour · Dec 20, 2012

Woo so i am on 4.1.2 and boom issues galore. No wifi access at all. I can see networks but when you connect it sticks at obtaining IP then nothing. boo

ideas?

i have done a factory reset fyi.

rsfour · Dec 20, 2012

Update, the wifi is now connecting after my THRID restore but is continually disconnecting.

silentwitness · Dec 20, 2012

are u running a custom ROM? If so which one. It could be an issue with the ROM.

SUroot · Dec 20, 2012

If you're allowing google to restore your phone after a factory reset, afterwards go and forget all your wifi networks and see if its any better starting fresh.

Terry51 · Dec 20, 2012

Also, try changing your ip setting mode to static...settings / wifi /select wifi network, click on show advance options and set ip settings to static. That might help.

rsfour · Dec 20, 2012

After many hours of pain I managed to get 4.1.1 back on with a samsmobile firmware. Later that the phone was connecting to the network but was disconnecting and reconnecting constantly.

Do you think I should try at OTA update?

rsfour · Dec 20, 2012

Terry51 said:
Also, try changing your ip setting mode to static...settings / wifi /select wifi network, click on show advance options and set ip settings to static. That might help.

It's a 100% stock rom and kernel

silentwitness · Dec 20, 2012

as suggested by terry51 try setting a static ip and see it might solve ure issue. make sure its in the correct range of ure router and outside the dhcp range.

rsfour · Dec 20, 2012

We run two wireless networks in the office. One for us and one for any visitors. Both are totally separate separate and neither worked.

rsfour · Jan 17, 2013

Solution.

http:// http//forum.xda-developers.com/showthread.php?t=2078000

HighSierra · Jan 17, 2013

rsfour said:
Solution.

http:// http//forum.xda-developers.com/showthread.php?t=2078000

This link doesn't work for me. Firefox.

silentwitness · Jan 17, 2013

here
http://forum.xda-developers.com/showthread.php?t=2078000

rsfour · Jan 17, 2013

No idea where the % appeared from in the url.

smallclone · Feb 13, 2013

Am I reading this right?

For my S3 to work with wifi I have to root the phone?

SUroot · Feb 13, 2013

smallclone said:
Am I reading this right?

For my S3 to work with wifi I have to root the phone?

I haven't found a WiFi network I cannot connect to. I am rooted but I didn't have to do anything with Folders from other people's phones or permissions.

If you have a specific wifi issue, it may be as well creating a new thread.

zophini · Jul 24, 2013

This fix will work for any Samsung phone.
I was having the same issue but someone on this site posted how to fix this issue.
What you need to do it type in on the number pad *#0011#. You will get a different screen. At this point tap menu and click on wifi. You will see wifi power saver. Below that it will say 'on'. Change 'on' to 'off' by taping it. At that point just exit out by hitting the back button. I made this change a week ago Monday and wifi calling has worked great at work or any other wifi location.
Two FYIs,
1. The battery will drain much quicker.
2. You have to redo the above steps every time you reboot or power th phone off/on.
I do not have a problem redoing these steps after rebooting but the battery issue bothers me. Any ideas on how to fix that?

snow_muncher · Jul 26, 2013

Not a fix, but a work-round

I use the drop down menu at the top of screen to turn wifi on an off as needed

tbh you save loads more battery this way too

ps

what I find slightly annoying is that the number *#0011# can be entered as a contact, it doesn't dial the number (I turn my phone off alot)

Help 4.1.2 WiFi not working

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