Question about Microsoft Xbox 360 Console

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MTU con connecting. How to fix ?

Setting up new X Box 360 live. All show connected except Mtu. It shows faied.  How do I repair this ?

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Re: MTU con connecting. How to fix ?

What does MTU do on Xbox Live?

The MTU of your router or gateway must be greater than or equal to 1365. If it is less than 1365, you won’t be able to connect to Xbox Live.

To change the MTu login to your admin router panel:
  1. Go to start>Run>cmd>type ipconfig
  2. look for "default gateway" then type that address into your router login, usally the login is admin/admin if not look in your manual or call your router maker.
  3. Now login locate the area to adjust the MTU if you cant find it, contact the router maker, or look in your manual.
More info:

Good luck!

Posted on Oct 22, 2007

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Xbox Live - MTU Error

Xbox 360 MTU errors

This issue occurs if your router or the gateway is incompatible with Xbox Live, or if your router or the gateway has an incorrect MTU setting. Note: Xbox Live requires a minimum MTU setting of 1364. We recommend that you try out the steps shown below.

Things to try:
1. Ensure that you have properly setup your connection to Live by using the Connectivity Wizard
2. Visit the following Web site to determine whether you have the correct firmware version that has been certified as compatible:
3. See the router or gateway instruction manual for information about how to change the MTU setting to 1364, to do this, or to determine whether your router supports this feature, see the router support documentation or contact support for your router device.
4. If you share a connection with a router and a modem, try a direct connection without the router.

For additional information on this topic refer to the following KB article:

on Sep 30, 2008 | Microsoft Xbox 360 Console

1 Answer

Not enough mtu to go to xbox live at hotel

An MTU is the largest physical packet size, measure in Bytes that a network is capable of transmitting.. If messages are larger than the MTU they are divided into smaller packets before they can be sent. All networks have different MTU's which the owner of the network set at what they want to set it at. 576 is a very common MTU if you connect through PPP. 1500 is the most common MTU for Ethernet connections. The Xbox Live system requires your network to have a certain Maximum Transmission Unit (MTU). MTU values are important to the performance of online games. If this test fails, you can adjust the MTU setting on your network router or equivalent device to resolve the problem. Xbox live requires the network you use to have a maximum MTU. This is key to online gamesing. If the MTU fails then you have to adjust the router you are using. If you cannot access the router to adjust the MTU the you will not be able to play online games.

Mar 22, 2011 | Microsoft Xbox 360 Console

1 Answer

Hey i have a thomson TG782T and i am trying to connect an xbox 360 elite to xbox live through an ethernet cable and i am having the mtu error come up. i already have an xbox 360 slim connected which works...

Maximum transmission unit is 1500, but for the Xbox 360 it "must" be set within the range 1364 - 1492
Since there's no MTU settings for the TG782T. your only choice is to replace it with routers like Linksys, Belkin, Netgear.

Jan 05, 2011 | Microsoft Xbox 360 Console

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Trying to set up xbox live.

you need to make an xbox live profile not mtu for offline. You have to make a new profile.

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1 Answer

Insuficient MTU

I have been through this before, I learned how to change my mtu but that did not work. I wound up getting a new modem. And thats what worked

Jun 13, 2009 | Microsoft Xbox 360 Console

3 Answers

Xbox live cant connect mtu failed

This appears to be a common problem, most likely due to the recent Xbox Live server maintenance. Nothing we can do except for wait until Microsoft fixes things on their end.

Sep 30, 2008 | Microsoft Xbox 360 Console

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Xbox 360 live states MTU failed

for some reason i cant connect to live, it says that my mtu has failed. any surgesstions how i solve this??

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