THE PORTAL OF NEWS RELEATED TO NOKIA
According to forum posts on Nokia Support Discussions and elsewhere, some 900s aren’t able to connect to any of AT&T’s data networks. The affected phones get data reception initially, but once the connection is severed by turning the phone off or placing it in airplane mode, it fails to reconnect. Some have successfully solved the problem by removing the SIM, performing a master reset, shutting the phone off, reinserting the SIM and turning it back on. However, it looks like that solution isn’t working for everyone.
It seems the problem has appeared in a limited number of Lumias, AT&T is solving the issue and official response on the matter while it investigates and awaited.
But, as we seen earlier in lumia 800 battery drainage issue which was solved by the software update this problem also can be solved in some couple of days , so keep your i n ear on latest improvement.
In the meantime, let us know in the comments if your 900’s data deprived, or if it’s been loving LTE without interruption.