"Verizon is unable to authenticate your phone" message after upgrade

[sfetaz]

I upgraded my xv6800 to the 3.35 official rom, and upgraded the radio to 3.42. The phone seems operational so far, however I get the message from verizon "We are currently unable to authenticate your phone" any time I try to make a call. I went into ##778# and noticed the only difference is that under security the PPP username was filled in with the same information as HDR AN Auth User ID. So I removed this. Didn't fix the problem. Anyone know what I need to do to get calls back?