What is registration time for a cellular module?
Registration time is the number of seconds that it takes the module to register with the cellular network. The shorter the time, the better. Registration times over 90 seconds can be a sign of poor signal quality.
How to resolve:
If registration times are consistently over 90, the module is having a hard time connecting to the cellular network.
Complete steps to improve the module's signaling. For more information about troubleshooting cellular signaling, see Poor Signaling.