How to Change the MTU Size in Windows 7

  1. Open a command line window as an Administrator (ie. right click on All Programs > Accessories > Command Prompt and select Run as administrator) …
  2. Type the command netsh and wait for prompt
  3. Type the command interface and wait for prompt
  4. Type the command ipv4 and wait for prompt
  5. Type the command set subinterface “Local Area Connection” mtu=xxxx store=persistent


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