How to change the MTU of an interface in Windows

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Use the following command to get the currently available interfaces and the MTU. In this example, the MTU of "Local Area Connection" is 1500.

PS C:\ > netsh interface ipv4 show interfaces

Idx   Met   MTU       State           Name
---   ---   ----  ---------   ---------------------
  1    25   1500  connected   Local Area Connection

 

Use the following command to change the MTU. In this example, the MTU is doubled to 3000.

  1. Type netsh and press enter
  2. Type interface and press enter
  3. Type ipv4 and press enter
  4. Type set subinterface "Local Area Connection" mtu=3000 store=persistent and press enter

 

Run the first command again to ensure the MTU has been updated.

PS C:\ > netsh interface ipv4 show interfaces

Idx   Met   MTU       State           Name
---   ---   ----  ---------   ---------------------
  1    25   3000  connected   Local Area Connection

 



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