We have an architecturally significant, historic house (built in the 1930s) for our office. I was tasked with replacing the Eero WiFi mesh with something that

We have an architecturally significant, historic house (built in the 1930s) for our office. I was tasked with replacing the Eero WiFi mesh with something that actually worked. We needed APs both upstairs and downstairs to provide sufficient coverage - especially through the lath-and-plaster walls. It was _really_ frustrating for a couple reasons - first, the original design left no open risers to run cabling between the floors and even thought there was a nice 3' tall attic between the ceiling and flat roof, there is no access to it save a 1x2' port in a closet which is blocked by framing members and retrofit HVAC ducting. Secondly, over the years, multiple generations of cabling had been installed allover the building - several sets of coax - presumably for TV as well as CCTV, and bundles and at least 5 different generations of CAT-5e and CAT-6 had been run from the equipment closet across the house through the crawlspace and up through the walls to the second floor and attic. In all cases, the bundles of cables had been clipped off and shoved back through the floor or the cables were cut off, their wall boxes removed, and the holes plastered over leaving it all essentially useless. It made the interior nice and slick, but completely wasted all the effort of the generations of previous installers and perfectly good cabling. Why couldn't they have just left everything in place and used block-off plates, or plastered over but left the wiring un-cut and documented the spots where the cables were. Or something, anything. I was able to tone out a cable that I could reach from the ceiling access port and another in the crawlspace, re-terminate them and poke the other ends back up through the floor in the equipment closet and get a couple APs installed, but what a PITA. /rant