Great, thanks, I appreciate it. I just don't want it to be an issue I've waited 10+ days to get solved and the person sent can't help. Thanks for putting up with me while I convinced you guys that there's really nothing (splitters, etc). between the X1 and the street while troubleshooting.
Looking for stuff out of the ordinary ... the install is a bit odd in that it is an underground install with no pedastal. The feeder line just comes out of the buried orange conduit right into the Cisco tap, with another buried RG6 coming out of that back underground to the house. That is the confirmed drop line to the house. One issue I just noticed is the TAP is not grounded. The copper ground line is connected to the tap and to a grounding clamp, but it doesn't clamp to anything. Maybe some noise making it in because of that? SNRs look decent, though.
I am curious at my address what has been done in the past. It seems a bit unusual in the neighborhood. From what I have seen, it looks like everyone else has buried RG6 or RG11 coming from the pole, not individual pedastals or taps in their yards. There is an older buried RG11 that has been pulled out of the demarc box so something must have happened with that in the past.
As far as filters, etc., I don't immediately see anything suspicious. In fact, I didn't see anything at all, including POE filter. With a feeder line to the tap in my yard, shouldn't that POE be at that tap? I added a Holland MoCA POE filter I had to my inbound line before connecting to X1 just to make sure there wasn't some MoCA interference with neighbors.
One / two additional questions: What downstream frequencies does the X1 actually use for activation purposes? What downstream channels does it need to see? As I said earlier, it just seems to keep cycling through them, giving a physSynch with what seems like decent power (2.9 to 3) and SNR (40) but goes nowhere from that. Maybe there is some noise (or no signal due to some filter I don't see) at one particular critical frequency, even though everything else is good.
Thanks !!