Thanks I’m using the built in radio on the HA Yellow radio for the thread interface so I don’t think that I can augment it’s power supply and hope that it’s not underpowered being built in.
Home Assistant Yellow - Home Assistant documents it as “Integrated smart-home wireless (Silicon Labs MGM210P Mighty Gecko Module)”
I’m having this same issue, every 6 hours on the dot. I don’t have an OTBR, though, but I did try to install the ZBT-2 about 10 days ago but removed it after it wreaked havoc on my network. I have 4 Apple TBRs and an Apple managed thread network. The info for the Thread network shows channel 25. I don’t think there’s a way to change it to channel 26. I’m at a loss of how to track this down but it’s driving me crazy. Help!