Repeating Honeywell re-authentication

My two Honeywell T9 thermostats connect well with HA. I’m able to read the current status of each device and also turn each HVAC system off when HA receives an email notification from my system that a door was left ajar. Once all my doors are closed, HA turns the HVAC system back on. It all works great … until…

But every so many hours, both thermostats become unavailable and require re-authentication. I log into my Honeywell account. re-authentication is completed and all is well. 6 or so many hours later and thud, both thermostats are again unavailable… and the re-authentication steps are repeated.

Any suggestions?



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