Thread devices show no response
I've been struggling with this issue for a few months now and have found this to be the common cause.
I have about a half dozen HomePods (gen 1 & 2), HomePod mini's, Apple Tv's from different generations in my home. Often times I will see that my thread devices are either unresponsive or take a long time to activate (like a wall plugg). Usually this just starts as a spinning wheel next to a device I'm trying to activate then over time degrades to the point of all thread devices showing "no response". My wifi devices work as normal.
Each time I've seen this I look at the home hubs section and find that the connected hub is an older device that does not have built in Thread support. If I unplug this hub then a new hub will be chosen and if it is one with built in Thread then all of the Thread devices begin to work properly again. I have tried removing all of the hubs from my home, doing a hard reset on each then adding them back to the home but the issue repeats itself. BTW, I was an early adopter of the Home update this last December that was subsequently pulled. Everything is up to date with regards to software/firmware for all of my hubs/devices. Any help is appreciated!