Cannot Switch to Wireless LAN

Troubleshoot by checking the items below.
 
Administrator or NetworkAdmin privileges are required.
1
Log in to the machine as an administrator. Logging In to the Machine
2
On the control panel, in the [Home] screen or other screen, press [ Settings/Registration].
The [Settings/Registration] screen is displayed.
3
Press [Preferences] [Network] [Select Interface].
4
Press [Wireless LAN] or [Wired LAN + Wireless LAN] [OK].
The settings are applied.
5
Connect the machine to the wireless LAN. Connecting to a Wireless LAN
A08C-25Y