No warranty support Honeywell will not replace a defective T10 Pro thermostat because it was purchased from eBay an non authorized dealer. Some customer tech and warranty support that is. What a joke. Know issue that Honeywell devices do not play well with WiFi6 Still won't replace under warranty Charlie if you really want to help reach out and replace my faulty T10 with a warranty exchange Nice canned replies If you really meant what you said you wod fix your issues with Wifi6 replace my T10