CELL 'blue' LED wont stop blinking on AVR-IoT

[bert8877]

I got my copy of the AVR-IoT module for the contest 2 days ago and it worked great. Both the CELL and CONN LEDs came on solid and the heart beat DATA worked well and I used 90KB of the free data plan over 4 different sessions. However, since then the CELL LED won't go from blinking to solid. I don't think it's the broadband quality in my area since it worked in the beginning and I drove to several excellent broadband places including next to a cell tower.
I did reload the sandbox.hex several times and even reset the device to factory settings. I have moved the SIM card a millimeter either direction just in case it was not seated perfectly. The data provider shows that my SIM is still active and nothing appears to be out of line with that account. At https://iot.truphone.com/sims the Session Status for my SIM car shows 'Offline' but I am thinking that's normal.
Any ideas?