Why won't my flex connect to a cellular data network 3 g, 4g? Works fine on wifi networks

[AC Question]

All data is turned on on the phone and on my account with att still want connect to data via 3G or 4 g

 

[dpham00]

Re: Why want my flex connect to a cellular data network 3 g, 4g? Works fine on wifi networks

Have you verified the apn settings?