pasrk,
I haven’t worked on this for two years or so, but looking at this thread and trying to reconstruct what happened, I think the problem in my case was that the antenna that RAK sent was bad.
In email with RAK support, nothing we tried fixed the problem. They sent a new board and antenna (right when Covid was starting up). For some reason, I tried the new antenna on the old board, and it worked. I swapped the old antenna back onto the old board, and it failed again. So I left it with the new antenna on the old board. I didn’t even unpack the new board.
Your failure could be because of software or misconfiguration, board failure, poor antenna connection, faulty antenna cable or antenna. Check your antenna socket and plug with a magnifying glass to make sure the connecting parts aren’t bent and not connecting. If you can get a GPS antenna with the same connector, try it.
Don’t assume yours is failing because of software: it could be hardware. I spent a long time figuring that out.