Not really a Tivo/MOCA problem but I'm at a loss. I have created a Moca network as shown in the attached pdf file for OTA viewing, no cable programming. From a process of elimination it appears that when I connect the input from Spectrum, my broadband supplier, the signal strength of 4 out of 5 channels drops from around 75% to below 40% and the SNR from 29db to 15db. I swapped out the 2 Antronix splitters for a 3-way Ideal splitter rated 5Mhz to 2.4Ghz and also replaced the incoming POE filter. I'm assuming the POE filter is an active band pass filter because if I just disconnect the cable input and leave the filter in place, the problem goes away. The frequencies affected are 491Mhz, 545Mhz, 671Mhz and 683Mhz. The only channel not affected runs on 201Mhz, therefore I think I have an impedance problem somewhere but I can't figure out where. Any help would be appreciated. Not much hair left to tear out.