I recently picked up a Roamio pro and Mini. I also picked up the MOCA adapter and POE filter from TiVo. I was having issues with my Mini being jumpy on playback or live TV. I read that a different splitter and POE filter could help. The splitter that was there was installed by the cable company and is a 5 - 1000 MHZ. I replaced that with a 5 - 3000 MHZ splitter I picked up locally and installed the POE filter. Mini now seems to be running smooth but I had no Internet access. Apparently my cable modem wouldn't connect. I removed the filter and now the modem connects and Internet access works fine. Here is my setup: Cable comes to the house - POE Filter - 2 way splitter 1st line goes to the office to a Actiontec MOCA adapter then to Cable modem 2nd line goes to family room to a Roamio Pro. With the POE filter, no modem connection and no internet access Without POE filter, modem connects and have internet access Anyone know if there a reason why the filter would kill my cable modem/internet access?