Press the WPS button on the wireless router (access point).
NOTE:
If the wireless router (access point) has no button, enable the WPS using the software supplied with your wireless router (access point).
Hold down on the printer for three seconds.
The Wi-Fi status lights flash alternately. It may take a few minutes while the printer connects to the network.
Wi-Fi setup is complete when both network status lights turn on as shown in the following illustration. The right network status light turns off after five minutes.
Wi-Fi setup failed if the left is off and the right is flashing. Click the following link to solve the problem.
Setup failed