Question about Actiontec (GT704WG) Router

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MTU fail actiontec gt704wg

How can I change my MTU? I get mtu fail whenever I try to sign up for xbox live. Many thanks

Jack Dofelmire

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Re: MTU fail actiontec gt704wg

I opened my xbox 360 and i did not see a switch any where. don't do it its a lie.

Posted on Oct 09, 2008

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Re: MTU fail actiontec gt704wg

That's just going to void the warranty, I don't really sugest you to do it.

Posted on Jan 28, 2009

Re: MTU fail actiontec gt704wg

With a screwdriver open your xbox. you will se a switch there with MTU written above. it . just switch it to 1400.

good luck

Garry W

Posted on Jan 26, 2008

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Re: MTU fail actiontec gt704wg

Hi im from xbox live support team. all you have to do is call your isp then tell them to set your mtu to 1364.

that's about it ^^

Posted on Jan 31, 2009

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How do i access my mtu settings on the actiontec GT704WGB

For you to access the MTU settings of your router you need to access the WAN IP Address Page. make sure that you're using a computer that is connect to the router. Open a browser and type on the address bar. The Home screen will appear then click on Advanced Setup. it will ask you for a username and password. The Default Username is admin and Password is password. On the Advanced Setup Screen click on the WAN IP Address. Click Yes on the Warning Screen to continue. MTU settings is located on the lower part of the screen.
Rate me if this helps so i can help others.
Thanks for using Fixya.

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Mtu settings

Two things needs to be cleared:

1) Which connection did you talking about LAN/WAN?

2) Xbox live may not be up yet, can you verify it?

Most home gateway routers can only change WAM MTU for certain connection type (PPPOE), and cannot set MTU for LAN and other WAN connection.

To change MTU for PPPOE, going to WAN connection setting, and you will see the MTU options box. But do not change it unless your ISP told you to do so.
So make sure Xbox live is online -- I am no Xbox fun so I have no idea how it works, but just guess from your message.

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1 Answer

Can't set up my mtu on gt704wg

XBox Live is down today June 16th, 2009. It'll be down until either late tonight or early tomorrow. There is maintenance being done on the servers.

Jun 16, 2009 | Actiontec GT704WG Wireless Router...

1 Answer

Mtu setting

In some cases, MTU is not necessary to adjust. Its always automatic and defaulted to 1500. The router model that you have doesn't have MTU settings. You can download the User's Manual HERE. You must do port forwarding and open the xbox live port so you can play xbox live. If it keeps on telling you about MTU, you must set static IP address on your xbox's settings and power cycle your devices.

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first you need to know th ip adress enter it in your internet browser. It may ask for a user name and password. You seting should then be displayed after that.

Jan 03, 2009 | Actiontec (GT704WG) Router

1 Answer

360 mtu test keeps failing

Access the routers setup page by typing (ip address of the router) on the address bar on IE.

then on basic setup page at the bottom part of the page you will see MTU normally its on auto,
to change the value set it to manual. ask your isp what is their prefferred value for the mtu you can go as high as 1300 to 1500.

Sep 13, 2008 | Linksys Wireless-G WRT54G Router

1 Answer

Mtu failed

what kind of router are you using to connect your xbox 360 to? usually you can define the MTU size in the router configuration.. default for xbox 360 live is 1364 ... check out your web configuration on your router to see if you can change this!

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1 Answer

MTU failing for Xbox live


I am afraid Dell 2350 Wireless Router is not Xbox LIVE Certified.

Check Microsoft Knowledge Base ID: 908882 -
Xbox Live Compatible logo -


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1 Answer

XBox 360 MTU Failed with Router

MTU of 1500 is the standard TCP/IP message length. Only MS Vista allows that to be changed dynamically. If your ISP uses 1500 then you need to use it too. Your Xbox protocol may be blocked by your ISP. You may want to give them a ring...

Jan 04, 2008 | Linksys Wireless-G Broadband Router

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