T-mobile Service not working topic

Ive looked through MANY different thread and done exactly what they said, but I just cant get it to work. I put the phone in Gsm mode, and then manually search networks, but after 3 seconds it goes away with no results. Or tries to make me use global settings. I made an APN with the settings
Name: T-Mobile US
APN : epc.tmobile.com
Prox: blank
Username: blank
Password: blank
Server: wap.voicestream.com
MMSC: http://mms.msg.eng.t-mobile.com/mms/wapenc
MMS Proxy: 216.155.165.50
MMS Port: blank
MCC: 310
MNC: 260
Authentication type: not set
APN Type: default
APN protocol: IPv4
Bearer: unspecified

Am I missing something?