MTU size 변경하는 방법

1. Click the Windows button on the task bar.

2. Click All Programs.

3. Click Accessories.

4. Right-click on Command Prompt and click Run as administrator. 

5. If prompted click the Allow button.

위의 순서대로 Command Prompt 창을 관리자 권한으로 열고

1. Type netsh interface ipv4 show subinterface

2. Press Enter.

3. You will see a list of network interfaces.

4. Type netsh interface ipv4 set subinterface “Local Area Connection” mtu=1458 store=persistent

You should replace Local Area Connection with the name that appeared in the “Interface” column from steps 1-3.

5. Press Enter.

6. Restart you computer and then test again.

출처 : https://support.zen.co.uk/kb/Knowledgebase/Changing-the-MTU-size-in-Windows-Vista-7-or-8