Samsung Galaxy III s WiFi authentication error & ATT Uverse router

Question

My SG III s wont connect to ATT Uverse router. Ive gone through ATT help and they say its the phone. Ive gone through Sprint (phone & service provider) they say nothing is wrong with the phone. Samsung support also says nothing wrong with the phone.

It connects to unsecured networks no problem. If i turn security "off" in my uverse router it connects no problem.

With security "on" in my uverse router i get an "authentication error occurred" on the phone. Even though the status bar on the phone shows it sees my router at excellent strength.

And yes I have verified the password with correct upper and lower case.

Ive connected to several unsecured WiFi without issue.

The only secured network I have connected to is at work. I know they dont have uverse but, have no idea what the WiFi brand is. It connects no problem with security on and my office password.

Phone is running android 4.0.4

Ive changed router settings to use channel 11 and power level 400.

Ive rebooted router. Reset the phone.

I can also see in the router the MAC address for the phone. So I know they are seeing each other.

Answer 1

Routers from Mikrotik with RouterOS has problems with 4.0.4 Androids as well. You have to upgrade to 5.22RC1. Contact Support@mikrotik.com to get this test version (In case if you are reading this the 5.22 isn't already released officialy =)

Answer 2

Easy fix. Don't use your wi-fi password. Use the Wireless Key #. I have been trying over and over with my personal password and kept getting the same authentication errors everyone has been discussing with u-verse. I pulled the paperwork that the installation guy gave me and just taking a last resort shot at it, I tried the Wireless Key # written on the paperwork. It connected immediatley...

This reportedly also works with the Verizon branded Samsung Galaxy S III. Their 2nd level support only suggests factory resetting which won't help. Only the above mentioned technique does

Answer 3

I have AT&T U-Verse at home. My S3 connected to the gateway with no issues. Did you try to remove the saved network from the phone, factory reset the gateway and then try adding it. If that fails, try to manually add the SSID and key after you remove the network from the phone settings. Worst case ask them to send you a new gateway. If you changed the SSID at any point or added static IPs you might need to factory reset, add the phone and then add the statics to the gateway again.