Home DVR

HI

I have an issue that no one seems to be able to fix. I have had two techs out and no one can figure out how to get my home DVR system to work.all the techs do is call in and have the home base send a new signal!) which i have wasted two hours doing myself on the phone with them.) It worked fine two weeks ago then my host box went out and they replaced it now I can't watch DVR on my other box in the bedroom.. How can we fix this issue?

thanks!!