[snovvman]

This is what to do:

Go to dialpad, enter ##DATA#, choose Edit, enter MSL, and use left soft menu key and choose Restore. The phone will reboot.

Once it reboots, go to Settings/System and choose Update Profile. This should repopulate the phone's custom data settings, including the AAA shared key, IP address, vision email address, etc.

I've done this many times for a variety of reasons. Do at own risk.