Cellular SIM cards not recognized.

Case Studies and Praises
1

I have 2 sim cards that work on phones and on other routers. They are not recognized by my Peplink router.
MAX BR1 Pro 5G
Suggestions?

2

Have you figured it out? I have the same question so unfortunately not an answer for you!

3

Can you explain what happens? What do you mean the router will not recognize the SIM? Or, is the carrier that will not allow the SIM to be used? Can you explain further? And, exactly what SIM is it – carrier and plan?