I have a Roamio and 2 minis that are on a MOCA network. 1 random day 1 of the minis could not find the main roamio. I called Customer Service and they had me go through multiple connection tests. The mini could connect to the internet. That technician told me there is a known issue and the mini might have to be replaced. She told me to call back and reference a case number. After that event, the second mini also lost connection to the Roamio. I called back, referenced the case number, and the technician told me that I needed to purchase a new splitter, with a higher MHz rating, and a POE filter. I got those 2 items, installed them, and the second mini regained connection to the main Roamio, but the original mini still could not connect to the Roamio. I called back to Customer Service and that technician had me swap the 2 minis. The original mini worked and the working mini did not work. Clearly there is some problem with the MOCA connection at that original mini. I swapped out all of the cables and the was still no connection. I received email instructions to remove the power from modem, router, MOCA network router, Roamio, and mini. I followed those instructions and now the Roamio cannot connect to TiVo network.