Been using the Venstar colourtouch T7900 for a while now and was very happy with it. But ever since configuring HomeAssistant with my local Certs/Authority (I run it all local only and access remotely via Wireguard), it won’t communicate with HA anymore. I updated the firmware and rebooted it and it came back for about a week but has since become unavailable again in HomeAssistant and rebooting fails to fix it anymore.

anyone else have this issue. or am I missing something here?

side note/context: I have both the thermostat and HomeAssistant configured with static IP addresses, if that matters at all.