Yup - same thing here. Like I said, even Carrier's own app sucks and takes a very long time from the time you enter a change to the thermostat until it actually registers. Ideally we could have direct IP local control? - I found the lead guy on LinkedIn at Carrier who deals with this. His name is Frank David. We exchanged emails in August 2021. This is what he said: "Sam, Thank you for purchasing Infinity products and yes, using the Infinity system control is required to get the advanced features for variable speed. We have some work to do to get connected with smart home integrations. We are currently working to improve our customer experience with third party integrations such as Contol4 and Apple HomeKit and others. I can’t give you specifics yet on when they will be available but know that we are working toward greater integration to smart home systems."