When the tech left my house about an hour ago, he showed us that we could see the playlist on our new HR24 from the other HR21 in the bedroom. We haven't changed anything since he left, but now we can't see the other playlist. When I go to Whole Home and then Status, it says No Networked DVRs found. TV apps is not working and says it can't find an internet connection. I did a Network System Test and it says Diagnostic Code 70-101 - Cannot Detect Home Network - Your receiver is configured to work...but the network was not detected. I called the 800 number and the agent said to hit the reset button on the HD DVR and she would push something to the system to try to fix it. It did not. She said she would put in a work order and that someone would call me back in 20 minutes and send a tech over today, but it's been an hour and no phone call. The tech installed the DirectTV Cinema Connection Kit with coax. Our internet is working fine on our computers. Is there anything I can do myself to try to fix this? Thanks in advance for any help.