I use MoCA (over CATV) and it's really solid for me. Price has come down, you can get motorola devices that support MoCA 2.0 bonded which can provide around 800MBps for $60. Latency is in single digits with minimal jitter, compared to powerline, which doesn't play nice with the AFCI circuit breakers required by code in most US cities now, and also has pretty bad latency and jitter.

I also made sure to use a proper MoCA cable splitter, as well as installed terminators on the unconnected end points.

Which single digits? Single digit seconds? :-) Milliseconds? Microseconds? Just wondering... Looks like my local gigE at work is 0.3ms machine-to-machine, for comparison. And at my data center, pinging google.com is 0.6ms. :-) At home I have nothing close to that though.

Anyway: This is a fascinating idea. I had looked a year or two ago and the options didn't seem as good. What adapter are you using? I'm seeing mostly an Actiontec for around $90 each. I need to check my head end, but this might just be plug-and-play to reach 2 of my hardest to cable locations. I started thinking about just running some fiber along the CATV runs (along the outside of the house), but that'd be more of a pain. Especially getting the terminated ends through the wall. I'd want to run fiber since it'd be exposed to possible lightning, but I guess the CATV cable is similarly exposed. Hell, maybe I should just run some shielded cat6...

Anyway, I might just try this MoCA 2.0, thanks for that pointer.

Single digit milliseconds. Unfortunately anything ethernet over X will have latency due to the underlying medium.

I don't recommend Actiontec, I had a fairly expensive adapter go bad on me after about a year. I replaced the other ones with Motorola MM1000, which are much more reliable in my experience, and I found for $60.

Thanks, I saw some references to the Motorola, and I've had pretty good luck with their gear in the past (15 years of Surfboards after a cable tech recommended it as having fewer issues than the others). But when I searched pretty much all that came up for my string was the ActionTec.

Nah, you're totally normal. Renovating is like opening a can of worms. No matter what happens, the scope of the project will always balloon once you find out what inside the walls.

Our house has single-wall construction, so I'm immune to that illness. There is, by definition, nothing hidden in the walls. ;-)

Stuff like this, water damage and insulation make me think we are putting walls together wrong. I have no idea what the solution is but this is the pits.

I remember finding out Americans build walls differently than Europe. The stories about finding insect nests in walls sound insane for me to this day.

Well, old buildings follow old building code or none at all. There are still a lot of 100 year old houses here that were built without insulation, and a void is gonna look damned attractive to wasps, bees, and smaller birds.

Interior finish work is expensive, doing it over to put in insulation is even moreso. And to add insult to injury, the low R value of walls is a data point used by siding installers, to try to talk you out of ripping the old stuff off before installing new. Each layer has an R value, dontchaknow...