You can set the speed that the printer will use for Ethernet communication. Usually, you should set the printer to select the Ethernet speed automatically. This setting allows two interfaces to determine the optimum speed when they are connected.
A connection cannot be established if the selected Ethernet speed does not match your network's transmission speed.
To reduce the power consumption of network devices, the default Ethernet speed of the printer does not exceed 100BASE-TX (100 Mbps). To communicate using a higher speed, enable 1000BASE-T (1Gbps) communication by selecting [Auto Select: Enable 1Gbps] from [Ethernet Speed].
Press [Home] () at the bottom of the screen in the center.
Flick the screen to the left, and then press the [User Tools] icon ().
Press [Machine Features].
Press [System Settings].
Press [Interface Settings].
Press [Next] repeatedly until [Ethernet Speed] appears.
Press [Ethernet Speed].
Select the Ethernet speed, and then press [OK].
Press [User Tools] () on the top right of the screen.
Press [Home] () at the bottom of the screen in the center.