Orbi 5G NBR750 does not recognize RM502 modem

[samo1]

Removed and then installed RM502 modem on NBR750. But now, the router does not see the modem. Mobile Broadband window does not show any info about modem (Model, IMEI, Firmware...etc). I did router factory reset and reinstalled latest firmware, didn't help. Any ideas?

[CrimpOn]

RM502 does not appear to be a Netgear model number.

[plemans]

Why did you disassemble it and remove the card? Was it having issues?

maybe you didn't reinstall it correctly? 

Or something happened during the disassemble/reassemble process

[plemans]

You didn't change the firmware on the RM502 did you? It can cause issues with detection. 

Might read a little about it here:

https://wirelessjoint.com/viewtopic.php?t=3609