Weird. And you probably needed internet access for them to debug the problem — catch 22.
Have you considered a more permanent solution? Such as at LTE 5G modem box? You can hook up antennas to it that are mounted on your roof and probably get a better signal. And it might be more reliable than a phone.
People mount them to their RVs.
I don’t know how much it costs.
“And you probably needed internet access for them to debug the problem — catch 22.”
LOL, That’s what I found after getting a PC.
I needed a second one to help figure out how to get the first one working again.