Conducted site visit with Rheem support, Brent Tested airflow and system performance in heat mode and cooling Checked static pressure, temperature rise, refrigerant pressures, and zone dampering. System is fully functional in all aspects of performance. Rheem app on homeowners home and the thermostat have connectivity issues and losing the ability to remotely control indoor air temperature. Recommend contacting internet provider and confirming 2.4 MHz operating range and possible band width limitations