My 2014 Cedar Creek 34 RLSA has coax problems too. I can't get a clear signal to the bedroom hooked up to cable, can't hardly get anything, but the living room TV is great. But when I switch to the batwing antenna and turn on the amplifier, I get great TV in both living room and bedroom. Very confusing as I seem to only get a signal loss when hooked up to a CATV line. I did find that in the bedroom, the splitter that split the line down to the basement/bedroom had a long screw (from the awning mount) hitting the back of the splitter. I cut that off but still did not make any difference. I just suspect there is another screw somewhere between the living room amplifier and bedroom that is touching the cable somewhere. But I can't figure why I don't seem to have signal loss when using the batwing/amplifier, just only when I use cable TV with the amplifier off.
I think Cedar Creek uses a 4 year old to run their television cables. Many have had problems.