Honeywell RTH9580 Wi-Fi User Manual page 28

Connecting to your Wi-Fi network
2b Using the keyboard, touch the
characters that spell out your home
network password.
2c Touch Done. The thermostat displays
"Connecting to your network. Please
wait..." then shows a "Connection
Successful" screen.
Next
2d Touch to display the registration
information screen.
2e Note your Thermostat MAC and
Thermostat CRC. You need these
numbers to complete online
registration.
26
Done
Next