Common Troubleshooting: Connectivity

COMMON   TROUBLESHOOTING
Category
ISSUE
CHECKLIST
CONNECTIVITY
SIM CARD FAILED TO CONNECT
Reboot the modem
reboot the whole unit
Set APN AutoMode
Set APN manually
Swap the SIM cards with cards from another slot
Swap the simcards along with a Module from another slot
Try to differentiate if the issue is with sims, Module or USB Slot   through above methods