U-verse WAP to 2 wireless receivers constant and increasing signal issues.

Yes, I've done all the troubleshooting suggestions. I have read thru the forum. Tech support also said they went into my hardware and updated all firmware and modified everything they could. I think its from them constantly being in the big box in our neighborhood recently. Any and all real suggestions or advice would be greatly appreciated. Just about done and thinking of switching to T-Mobile %g home internet and YouTube TV. Any alternate service suggestions are welcome too. Thanks!