Changing the Maximum Transmission Unit

In most Ethernet networks, the maximum size of a packet that can be sent is 1500 bytes. A packet refers to a chunk of data into which the original data is divided before being sent. The maximum transmission unit (MTU) may vary on each network. Change the settings of the machine as necessary. For more information, contact your Network Administrator.
Press .
Use / to select <Network Settings>, and press .
If a screen for entering a PIN is displayed, enter the PIN with the numeric keys and press Setting the System Manager PIN
Select <TCP/IP Settings>  <MTU Size>.
Select the MTU, and press .