I said sensor. Should have said receiver. Did you try a Xantexh emitter embedded as well or just the URC?
I have heard of embedded emitters working more reliably with Bell Fibe boxes as well. I wonder if there is something to that? I too would have a problem disassembling a rental box. Still if it is the solution maybe there needs to an understanding with the customer that we come over to remove it before any provider service is done, otherwise they are on the hook for any fall out. It's our job to get this stuff working after all.
My wife says I can't do sarcasm. She says I just sound like an a$$hole.