I have a Galaxy S3 and a data plan.
I prefer using wifi whenever possible.
I tried to connect to a few networks, both private and public but I always get the same result: phone will say "connecting..." or "obtaining IP address..." without actually connecting.
Restarting the phone won't work. Simply restarting wifi won't work.
A filtered log of "WiFi" is available here. I used LogCat for it. I also tried to disalbe DroidWall but didn't help. I don't remember what I have done before this occurred. Last option would be formatting phone and restoring TitaniumBackup
Any idea on how to connect again to home and other networks?
[Edit] It looks like the device connects only to one or few networks.
I have a Vodafone Station 2 router at home. I usually keep the built-in wifi disabled. When I enabled it, I was able to connect the phone to it.
Vodafone Station 2
I thought this could have been related to the installation of the Vodafone Station 2 app on the very beginning. My suspects become clear when the device is able to connect only to a Vodafone-xxx network but I have wiped the device. I have tried to connect the device during Android configuration without success.
[Edit] This suggests to me that it's a hardware problem. After upgrading to stock 4.1.2 I don't get the same error as before (good news) but instead it repeatedly refuses the WPA2 password for the home network. To be precise: I did the Vodafone-test only after upgrading ROM.
The Vodafone Station 2 router features wifi 802.11 a/b/g/n where my plain old home router only supports b/g. I have tried to configure Station for b only just to see if the device stopped connecting. I have no means of stripping Vodafone prefix from SSID in VS2 router
[Edit] Anyway I have another log. I don't want to separate myself from my device for too long. I'll try to install the stockest ROM for GS3 and to update via OTA.
Here are the logs: http://pastebin.ca/2317414 http://pastebin.ca/2317416
02-26 20:30:03.880 E/WifiHW (17931): Unable to open connection to supplicant on "/data/misc/wifi/sockets/p2p0": Connection refused
But I'm not using Wifi Direct!!!!!!!!!!
[Edit] notable line after reverting to oldest stock ROM
I/wpa_supplicant( 6982): CTRL-EVENT-ASSOC-REJECT bssid=2C.DA.82 status_code=16
[Edit] striked the Vodafone part. Simply the phone connects to the router if you are a few centimetres from it. If you get past about a metre's treshold the phone won't connect. This seems to be a widespread problem affecting Samsung devices, especially Nexus for what I have seen so far.
But I'm not using P2P! => P2P in this context is not meant in the sense of "peer-to-peer file sharing". It's a type of socket communication -- think of it as "point-to-point": one point is your device, the other might be the/your router where it should connect to.
The error message you quoted can be found in the Android code of wifi/wifi.c, in a part suggesting it's a WPA issue (I'm not an Android programmer, so I cannot tell for sure). Your problem was e.g. also reported in a German post at AndroidPIT (Google-translated variant). The reporter there found an easy solution: Resetting the router solved it for him.
In case this doesn't work for you, more information might be found using this Google search.
My Samsung Galaxy S3 has major Wi-Fi problems. It will connect to Wi-Fi for a few seconds, then it quits and won't connect to anything. It happens at home, work, or anywhere else with Wi-Fi. It's not the router. My laptop and other phone works fine with it.
If I turn off the Wi-Fi and then turn it back on again, it will work for a little while, but then, nothing, no connection to anything. I've researched the problem for days and seems like a lot of people are dealing with the same thing.
There are some supposed 'quick fixes' but none work for me. (dialing *#0011# on the phone to turn off power save mode, downloading a Wi-Fi Fixer app, doing a factory reset, trying to set a static IP - phone won't let me, and everything else, NOTHING WORKS!).
Is this a problem with the phone or the software? Do I need to exchange the phone for a different one?
I even called Samsung and they claimed that no one else has ever reported a problem with this, even though there are hundred and hundreds of posts online about the issue.
Is Samsung doing anything about this or should I just give up and get a different phone all together? By the way, it always says that I am connected to Wi-Fi. It just doesn't actually work.
I've read about having to set the router to G or N but I have no idea what the means or how to do it? And besides, why should I have to do that? Shouldn't the phone's wi-fi just work? And how would I do this G or N setting at work? Not gonna happen, so I'd be outta luck there.
If you're using the Sprint version of the S3, see if Sprint Connections Optimizer is turned on under Settings > More Settings > Mobile Networks. Make sure it's turned off, as it can cause Wi-Fi to be a little funky sometimes.