I've had an issue for the last month or so with my HR22 that has me totally stumped. One day it just totally disappeared from my network. I can't access On Demand and my Nomad/Genie Go and none of my other receivers can see it. I have been running my Whole Home DVR over gigabit ethernet since it was in the BETA stage, and I had continued to do so even after DECA came out. My cat has been known to chew on wires so I replaced the ethernet cable from my switch to my DVR and it didn't change anything. I have tried both ports on my DVR. I have tried different ports on my ethernet switch (and verified all ports work with my other devices like PS3, Xbox 360, Wii, Blu Ray player, etc). I have rebooted the DVR, rebooted my router, rebooted my switch, reset network defaults, tried putting in static IPs again, reset to defaults on the DVR (or whatever it is that resets everything but keeps your recordings). Finally I went ahead last week and ordered 3 DECA adapters off Amazon and hooked them up to my 3 DVRs. The two HR21s still see each other fine and Whole Home works great between them over DECA now (I haven't really noticed any difference between it and my gigbit ethernet though). The HR22 still doesn't appear on the network at all. I did not get a cinema connect kit so I am not hooked up to the internet at all with any of my DVRs right now (and also can't use my Genie Go). They are all back to using the 169.xxxxxxx IP addresses like they should since they are not hooked up to my router. But like I said the HR22 still does not show up on the network. The lights on the DECA behind the HR22 are both lit up green and it appears to be working fine. Is it possible that the ethernet ports on my DVR are just shot? Any other ideas on how to troubleshoot/fix this? Right now I am just concentrating on trying to watch everything off of it, because I figure I am most likely going to have to call in for a replacement.