Hi, I went to tune to this channel (717 on fios) and I get a v52 error. All other channels work. When I look at diagnostics for that tuner on that channel there is a dash where signal strength should be and SNR fluctuates between 16 and 25 Db. When this tuner is on any other channel the signal strength is 94-100% and SNR is 36-40 Db. I'm kind of new to this stuff, so can anyone help me troubleshoot why one particular channel won't tune? Verizon doesn't use tuning adapters so I know it isn't that... Edit: watching the diagnostics on this tuner/channel the modulation keeps changing between QAM 64 and 256. Other channels don't do this. Weird!