TransPort with "C1" ("Sprint EVDO") module was working with Sprint, Sprint deactivated it, Sprint re-activated it, and the unit is no longer connecting to Sprint. Because these units by default are provisioned automatically, the provisioning needs to be cleared.
1. Telnet or SSH into the TransPort to access the CLI then issue the following 3 commands, to clear the provisioning:
python -m misc/mcmdi at#rtn=1
python -m misc/mcmdi at#rtn=4
python -m misc/mcmdi AT#OMADMCEN=0
2. Reboot the TransPort.
3. The unit should re-provision itself if the Vision plan is being used.