said by beachintech:I offered to do that for the tech, but he is convinced that it's not the amp nor the house wiring, and declined my offer to do that. He is suspecting it's something in the headend or a return signal issue. They're hoping to catch a freeze-up on the sling box and take it from there.
Do not install this. Reverse amps should only be installed by the MSO, not a homeowner without a meter. They are very rarely needed. From the sounds of it the issue is most likely outside of your house.
Have you tested a single box bypassing the amp yet?