I was recommending this product to a friend and looked at all the negative comments. I have had these stats for several years now with no problems other than the occasional offline or wireless issues like with anything else these days. The only thing I would say is the set up and menu selection is not the most user friendly but it’s not that bad as some would say. We use Honeywell commercial products in my line of work which led me to these. Great bang for the buck if you ask me.
We have had the T6 wifi model for a number of years and it has worked fine. We recently changed network providers and cannot get it to connect to the new wifi.We had talked to Resideo support trying numerous different things like pulling the thermostat off the wall for a hour to reset, go through the menu to set up and it finds various neighbours wifi but not ours. Talked to internet provider and made sure the network was split for 5g and 2.4g and labelled as so. Other equipment we have connected fine to the new internet. Support could not really give us any other ideas and neither could the internet supplier as other equipment was fine. Not sure if we need to buy a new up to date thermostat like a T9 or T10 that connects to 5g and 2.4g. Would have gave this thermostat 5 stars until this happened.
I would recommend this to a friend!
Response from resideo.comBy Maria, Tech Support, July 30, 2025
Hi Knocker63, we are sorry to hear about this and apologize for the inconvenience. We can recommend you to see if you can connect the thermostat to a mobile hotspot (2.4). If it connects to the hotspot that means that there is a setting on your Wi-Fi network that is not letting the connection to happen. We will be happy to share a list of recommended router settings. If the thermostat does not connect to the 2.4 mobile hotspot then it might be the thermostat. Our Support Center link at the top of the page has all the ways you can get in contact with us to discuss where the issue may be.
Resideo doesn’t show the outside temperature. The area to change the temperature is small and light density. You have to turn off the light or it’s bright at night. My app never shows the correct outside temperature and doesn’t sync between my phone and tablet. It was pricey and not as good as my I,d comfort sync.
I like that we can control our thermostat over our phone but disappointed that I am unable to control it on the actual thermostat itself. You should be able to control it both ways.