Connect the printer to the network by using an Ethernet cable, and check the connection.
If you want to configure settings on a printer with Lock Setting enabled, you must log in as an administrator.
You will be prompted to enter the administrator password when entering a locked menu.
Connect the printer and hub (LAN switch) with an Ethernet cable.
Select Settings on the home screen.
Select General Settings > Network Settings > Connection Check.
The connection diagnosis result is displayed. Confirm the connection is correct.