move Home Internet SIM to personal router with external antenna

I just took my data only sim out of my TM nokia home internet gateway. I put it in a netgear M1 mobile router. I know its old but i wanted to use it for camping. Its small and has battery. LTE would be ok with me. For some reason 5g popped up in wifi connections! It hooked up to tower and my devices but said data has been disconnected and had no internet…..

i also put the sim in a extra note 20 to see if it would work as a hotspot but had the same results.

hooked up to the tower and devices but said no data……

Looked on the internet and found it was possible. Maybe back in the day or with a different company?

maybe TM changed something due to all the RV & truckers?

i was told i could simply take my gateway traveling with me. It would work with TM towers anywhere.

guess i will try it since i now have solar power LOL

but it is big and bulky.

15gb hotspot dont last very long when streaming netflix on roku tv LOL