Advertisements So I've been having a signal issue with FiOS, essentially getting tons of distortion and glitches on the screen. I've read that attenuators may be needed with the FiOS ONT but most of the people using them have a SNR that is too high (>31dB). In my case, connecting the TiVo directly to the ONT results in no signal strength and a SNR that fluctuates constantly from 9-21 dB, just as if the coax were completely disconnected. By adding in a 6 way splitter (11.5 dB drop) the SNR jumps to 26 and the signal strength hovers around 67%. I've tried using smaller splitters (2-4 way) with the result being that the TiVo once again acts like it is not connected, again with the SNR jumping from 9-21 dB. Does this sound like an overpowered ONT output? Will attenuators fix this?