I guess we reached WiFi saturation. Coverage around the house has never been great here - which I can't really fathom because we live in a spit-'n-tissue-paper new-build box that only has solid outsides - the internals are mostly cardboard.
Anyway - we've also developed an interest in indoor cycling, which is quite demanding in all things radio; WiFi, Bluetooth, ANT+... oh my word; it's a wonder all our hair doesn't fall out with all the emissions round here.
So I upgraded us to a mesh. We're not rich enough for Google Mesh, so we went for the BT ones. It's hard to prove negatives - but so far, no drop-outs, and plenty of bandwidth availability, even in the bog.
I also retired the Raspberry PI that was running dnsmasq and pihole. Adblocking is OK I guess, but it habitually caused the TV to crash while watching "Why does my Smart TV keep crashing?" and "Why won't my ANT+ connect to my trainer?" You Tube videos, and it also severely inhibited fboab's current hobby - "Shopping for things in China".
There were three networks here - for work reasons that have now gone away, so I was able to reduce the number of networks to two; the second one being largely fictitious by virtue of only living inside a hyper-v server, which means connections between Random Device A and Random Device B are much much simpler, and apparently quicker.
I also fixed the camera in the garage. It plinged annoyingly whenever anyone went in there (bike fettling, or apple-fetching) but didn't send any "FUCKING HELL, CHRIS - YOU'RE BEING ROBBED!!!!1!" videos to my long-suffering email. Mostly that was because the SD-Card was full, but it needed to be shown the new WiFi anyway, so it's now all working fine again.
We're still occasionally finding things that haven't been shown the new WiFi, y'know... things like:
fboab: "Did you update the Aria scales?"
me: "Fuckit"
but we're getting there, in a wholly first-world, "why does all the Tech hate me?" kind of way