i had the same issue with you. Can't put a splitter on that MOCA adapter. So what I did is the following: How many cable lines do you have in your house? Try and use the one that's either shared between ur FIOS cable modem and ur MOCA adapter or the one with the dedicated connection. this way you can get the strongest signal. If it's unclear, give me a call later today and I can explain more indepth.