Open the network settings on your PC, tablet, or smartphone, and look for the appliance broadcast.
The appliance will start to broadcast its configuration WiFi. It may take a minute or so for WiFi to come up. The SSID will appear as Offhours_XXXX, (where XXXX are the last 4 digits of the serial number).
Helpful hint: You can use any device capable of connecting via WiFi, but if you use a smartphone, you may want to disable the mobile cellular data until setup is completed.