@Igorreentov It's good that you see AT&T network
Do you have Data in your Roaming purchase or just voice? If it is voice, AT&T has started shutting down 3G (which voice in PM needs) so they might not have 3G in that area. Data uses LTE and it will start work if you can connect to the AT&T network
Lol...wouldnt I like to know.....took the pic, copied the link and my stupid tablet reboots and for the life of me I can't find it again! Oh wait a sec....found it!