3.1.1.1 and 3.1.1.2 codes

We have 2 Cisco 8642HDC Explorer High Definition DVR Receivers connected to two different Televisions.Every Evening and Every morning, we can't watch TV on EITHER TV because we keep getting the 3.1.1.1 and 3.1.1.2 codes telling us that the channel we are trying to watch is not available. It suggests changing to another channel and then coming back to the original channel but that has not worked ONCE. 

 Our internet is working fine and so is the phone (although we RARELY use it anymore). It's got to be something to do with these old Contour 1 boxes which we were forced to install otherwise we wouldn't be able to get any TV service. Well, that is what's happening now with these "forced on us" Contour 1 boxes. No TV service when we actually need it.

This has been going on for at least 2 weeks and I'm getting frustrated. I've already checked ALL the cable connections, reset the boxes (individually and through the online RESET function). I get up for work at 4AM and 99% of the time, I can't watch anything due to the above-mentioned code errors. Please help.