Thanks for suggestions - I thought about bringing a short length of cable out there -- even in the cold Minnesota winter
I just reset the box three days ago to resolve another issue (The Fortec Ultra goes haywire if it tries to read a 4:2:2 signal or a choppy signal for too long), but I can do it again. Since even pushing the buttons on the motor isn't helping, I'm trying to remember if the motor itself had a reset button or not.
I don't know if this is relevant, but I just slaved a Coolsat 8100HD to it -- and have set zero satellite coordinates to it. I tried at first, but the two kept fighting each other. I might disconnect it to find out if there's a culprit there...