"Sorry we're having trouble connecting" problem several times a day with my DVR service

Hello,

For the last month or so I've had numerous issues with my TV and DVR services.  I've had multiple techs out to the house to troubleshoot. They replaced my DVR box with a model I did not like (a XG2V2-P), and then I replaced that model with a model I prefer and what I had before the tech took it away (a XG1v4). The XG1v4 is what I have now.

But since all this swapping of DVRs I am now having problems when watching Live TV -- Like when I am watching CNN -- when suddenly I can't pause, go backward or forward in the X1 Live TV channel like I should be able to, and have for many years. The DVR gets stuck, dies, shows a TV feed from hours in the past, and sometimes shows the attached ERROR screen.  This happens almost daily over the last week or so and the only thing I can do to get it to work again is restart my DVR box.  

This is not the way things used to be and I'm really unhappy.  I pay a lot of money to Comcast every month.  I want to have the services I pay for.

The ERROR screen that pops up seems to indicate there are problems somewhere.  It implies teams are working on issues.  But I am really doubtful of that because it doesn't seem to be getting any better.

I'm so unhappy in part because I've spent so much time and effort on these services problems. I have spent hours with first tier support, and they are pretty useless. I have had to rearrange my schedule so that techs could come over numerous times.

Does anyone have any ideas what is going on here?  What exactly does this screen mean?  Is there anything I can do to fix this so that it stops happening?

Thank you