The day the network let go
Every so often the network throws a tantrum. This was one of those days.
Everything broke, sort of
It started as a typical “some things work, others don’t” morning. A few devices stopped talking, an add-on that keeps certificates up to date went into a crash loop, and the assistant I use to keep the home-automation setup tidy couldn’t reach out to do anything useful. Not a clean outage - more like the network had decided to be selective about what it allowed.
The answer was unglamorous and effective: reset everything. Full stop. Kill the network connection, let it breathe, bring it all back up. And like that, nearly everything came back to life.
The part that takes patience
The trickiest bit wasn’t the reset itself - it was what came after. Home Assistant keeps a list of “things to look at,” and it was full of warnings the reset had already made obsolete. DNS servers that couldn’t be reached. A IPv4 connection that had dropped. A network drive that had vanished. Ten or so items, all pointing at a problem that was already fixed.
Here’s the thing about an automation setup: it’s a little bit like a neighborhood. When the power goes out, every house records the outage in its own way, and some of those records linger long after the lights are back on. You can’t trust the pile of warnings at face value - you have to figure out which ones describe the current problem and which are just echoes of the one that’s already gone.
The good news was that none of it was real. The drive came back, the network stayed up, and one by one the stale warnings cleared on their own - all it took was time and a system patient enough to re-check itself. In the end, the only warning left was a known false positive that’s been harmless for a while.
A small housekeeping note
While the dust settled, I did some tidying. The assistant’s memory got a refresh - it used to keep a running diary of everything we did, which was nice to read but not much help for getting things done. I retired that in favor of keeping just the durable decisions: the “whys” that matter six months from now. Less baggage, and a better answer to the question “why is this thing here?”
And while we were at it, we cleared out a ghost. Somewhere along the way an older automation had been removed, but it left a leftover record behind that still showed up in the list as a second, duplicate-looking entry. It wasn’t real - just a shadow of something already gone. A quick cleanup removed it, and the list is honest again.
The network threw a tantrum. It got a nap. And we moved on.