What to do if LED 1, 2, 3, or 4 (WWAN modules) remains OFF on Teldat H2 RAIL Network Router?
- AAlison WebbAug 1, 2025
If LED 1, 2, 3, or 4 (WWAN modules) remains OFF on your Teldat Network Router, check if the SIM card has been inserted correctly. Also, verify that you have entered the correct SIM PIN. Ensure the antenna is properly installed and screwed in correctly. Finally, check that the SIM tray configuration is correct.