Nokia's latest Lumia, the 900, has been rightfully lauded for its low price and lovely polycarbonate shell, but apparently, all is not well with the new handset, Engadget reports.

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, so an official response is expected from AT&T, the report says.