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.
1.
Tap <Menu> in the Home Screen.
2.
Tap <Network Settings>.
If a screen for entering a PIN is displayed, enter the PIN with the numeric keys and tap <Apply>. Setting the System Manager PIN
3.
Select <TCP/IP Settings> 
<MTU Size>.
<MTU Size>.4.
Select the MTU.
