[justinn]

able to see via wifi now. looked at settings menu- did not see deadband- can you share how to adjust deadband?
this morning same issue 75 F at sensor , setpoint 72, no compressor. changed setpoint to 68 and compressor came on and ran continuously- temp in the room came down.

Have you tried leaving the blower fan running on low to see if that affects it? That would keep air being drawn across the sensor the entire time. Might help to eliminate if it's a trigger issue in the box vs an external temp issue.