PremierWave XC User Guide
102
17: Troubleshooting
This chapter discusses how you can diagnose and fix errors quickly without having to contact a
dealer or Lantronix. When troubleshooting, always ensure that the physical connections (power
cable, network cable, serial cable, antenna, SIM card) are secure.
Diagnostic LED States
Condition
Status LED
No GSM/GPRS Connection
GSM/GPRS LED off
Event Triggered
Fault LED Blinking
DDNS not configured
Fault LED Blinking
Wrong APN
GSM/GPRS LED off
SIM card not present
GSM/GPRS LED off
Problems and Error Messages
Problem/Message
Reason
Solution
Network not allowed.
GSM is not available.
Network Carrier is not properly
selected.
Verify Carrier Connection and select
the correct home network or
appropriate roaming network.
SIM is locked by PIN Code
SIM PIN is required
Input the SIM PIN (maximum 3 tries)
Check with operator for SIM Pin.
SIM is not present
SIM card is not properly inserted
or missing.
Verify the SIM card after powering
down the device.
SIM WRONG PIN
SIM PIN is required.
Input the SIM PIN (maximum 3 tries)
Check with operator for SIM PIN.
SIM card is locked by PUK
SIM PUK is required.
Input the SIM PUK (maximum 3 tries)
Check with operator for SIM PUK code.
GSM is not available
Antenna is not properly
attached.
Verify if antenna is properly attached to
device.
Wwan0 DIALUP FAILURE
APN is wrong or SIM card has
no GPRS data enabled.
Verify APN settings with Network
Operator.
Do ensure that SIM has GPRS-
enabled.