I'm at the moment visiting the US and got a AT&T Sim-card since AT&T use the same frequencies as the European carriers. How ever it wouldn't hook up to the internet. I could call but no data. After a long call with their support we got it sorted out.
It turns out that you don't get the correct APN-settings from AT&T when you start your account, it has to be entered manually.
Here are the settings:
Go to you APN settings and create a new setting.
Name: NXTGENPHONE
APN: NXTGENPHONE
MMCS: http://mmsc.mobile.att.net
MMS-Proxy: proxy.mobile.att.net
MMS-port: 80
MCC: 310
MNC: 410
APN-type: default, mms, fupl, hipri
The rest of the settings can be left as is .
With this it hooked up right away with my LG G5 H-850
I hope this can help others.
Jan
It turns out that you don't get the correct APN-settings from AT&T when you start your account, it has to be entered manually.
Here are the settings:
Go to you APN settings and create a new setting.
Name: NXTGENPHONE
APN: NXTGENPHONE
MMCS: http://mmsc.mobile.att.net
MMS-Proxy: proxy.mobile.att.net
MMS-port: 80
MCC: 310
MNC: 410
APN-type: default, mms, fupl, hipri
The rest of the settings can be left as is .
With this it hooked up right away with my LG G5 H-850
I hope this can help others.
Jan