On printer’s control panel, select the network name (SSID) displayed on this screen, and then press the OK button.
If the SSID you want to connect to is not displayed on the printer’s control panel, press the button to update the list. If it is still not displayed, press the button, and then enter the name shown on the computer.

Note:
If you cannot acquire the network name (SSID), check if it is written on the label of the access point (wireless router). If you are using the access point’s default settings, the network name (SSID) written on the label of the access point is set.