Issue:
I upgraded from firmware LoRaGateway_1.1.0063_Release_r205 to WisGateEdge_WisDM and I lost the Cellular Interface option. I downgraded to RAK7249_Latest_Firmware, but that did not help. I tried other firmwares too, but Cellular was missing.
In the end I downgraded back to https://downloads.rakwireless.com/LoRa/DIY-Gateway-RAK7249/Firmware/History-Release-Verison/LoRaGateway_1.1.0063_Release_r205.zip and now my Cellular Interface is back.
Setup:
LoRa® Server:
Details: