How do I connect the ET-3850U to a wireless network using the control panel?

From the home screen, select the network icon, then select Wi-Fi (Recommended) > Start Setup > Wi-Fi Setup Wizard. Select your network name, enter your password using the on-screen keypad, then select Start Setup to save the settings. Note that the network name and password are case sensitive. If setup was unsuccessful, you can select Print Check Report to print a network setup report or select Re-enter to try again. (Page 36-37)