Can you connect thru ur mobile data? Go to settings> wireless & networks or mobile networks > check data enabled > scroll down to access point names , check if theres att phone> if not tap on menu key and click new apn
These are the fields to fill in, all others leave blank
Name: att phone
Apn: phone:
Mmsc: http://mmsc.mobile.att.net
Mms proxy: 172.26.37.1
Mms port: 80
Tap menu key and tap save
Then select att phone make sure theres a green selection mark on att phone > check internet make sure wifi setting is off, turn on mobile data. If its not working, switch phone off anf back on then try again
These are the fields to fill in, all others leave blank
Name: att phone
Apn: phone:
Mmsc: http://mmsc.mobile.att.net
Mms proxy: 172.26.37.1
Mms port: 80
Tap menu key and tap save
Then select att phone make sure theres a green selection mark on att phone > check internet make sure wifi setting is off, turn on mobile data. If its not working, switch phone off anf back on then try again