Im assuming if this is happening to you then you are having trouble with T-Mobile. No worrys OG Bossman is here to help.

Make sure you Turn 3G off! The iphone is not compatible with Tmobile 3G so If you have 3G services with t-mobile you will still get good speeds.

goto settings

click general setting

click network

turn data on

turn 3G off

Click Cellular data network

in BOTH "apn:" TYPE epc.tmobile.com
"mmsc:" TYPE http://mms.msg.eng.t-mobile.com/mms/wapenc
"MMS proxy:" TYPE 216.155.165.050:8080

click home button to save

then power off phone

turn back on

goto settings

turn wifi off to check if internet works

safari