Changing Windows MTU: Difference between revisions

(5 intermediate revisions by the same user not shown)

Line 1:

<indicator name="Front">[[File:Menu-packet.svg|link=:Category:MTU|30px|Back up to the MTU Page]]</indicator>

[[Category:MTU]]

The MTU (Maximum Transmission Unit) is the size of the largest network packet that can be transferred in a single network transmission without any fragmentation happening.

We have a separate page on testing your [[MTU]].

Sometimes you may have a reason to change the MTU on your windows computer. Here is how.

Line 6:

Line 10:

We will show you how to show the existing MTU, and then how to change it, and then how to revert it back to what it was originally. We're using Windows 10 in this example.

===1. Open Command Prompt as Administrator===

===1. Open Command Prompt, as Administrator===

# Click <SyntaxHighlight inline>start</SyntaxHighlight>

# Type <SyntaxHighlight inline>cmd</SyntaxHighlight>

Line 27:

Line 31:

#Enter the command: <SyntaxHighlight inline>netsh</SyntaxHighlight>

#Then: <SyntaxHighlight inline>interface</SyntaxHighlight>

Then: <SyntaxHighlight inline>ipv4</SyntaxHighlight>

#Then: <SyntaxHighlight inline>ipv4</SyntaxHighlight>

Then: <SyntaxHighlight inline>set subinterface "Ethernet" mtu=1320</SyntaxHighlight>

#Then: <SyntaxHighlight inline>set subinterface "Ethernet" mtu=1320</SyntaxHighlight>

Then: <SyntaxHighlight inline>exit</SyntaxHighlight>

#Then: <SyntaxHighlight inline>exit</SyntaxHighlight>

The screenshot shows all these commands being run...