Possible mislabel of connections?
On 2 of the last 3 RV's I have owned, the factory mis- labeled the exterior cable and satellite connections. They simply put the wrong sticker on the cable and Satellite connections.
One would have though I learned after my first experience in an earlier RV to check that. But I forgot about it on the newer RV when the TV cable connection would not work. I was just about to start ripping the walls, ceilings and to destroy the entire new rig looking for what I suspected was a connection that they missed in the wiring and build of a 38 feet of motorhome.
So eventually my memory came back to me and I decided to check and swapped the connection from the campground pedestal from cable to satellite and well--- you guessed it-- it worked fine. The guy putting the sticker on labeling the connections in the factory put the sticker on backwards for the connection. Problem solved for me!
Joe a/k/a "Americanrascal"
2016 Winnebago Adventurer 38Q +tow dolly
8th RV to sit in our driveway in 35 years