I just moved this past weekend. I got a new hr34 and a hr21 replaced a defective hr20 Everything worked great for a few days. Then the whole home network split into two groups. My three old DVrs, 2 hr24 and a hr20 can see each other, but not the two new ones The two new ones can see each other, but not the old ones. I have a swm16. I did check the splitter connections. One of the old DVrs is on the splitter with the hr34. And the new hr21 is on the other splitter with the other old DVrs. I assume this rules out a problem with the splitters. I did do a rbr on all units to no avail. Any idea on what try try next?