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Xbox 360 MTU Error (Japan Edition)

UberEvUberEv Registered User regular
edited September 2007 in Games and Technology
Hey Everyone, I have a pickle of a problem here. I just moved to Japan and we were supplied with a VDSL Modem, and I'm using a Linksys WRT54g Router with an Xbox 360.

Now each time I try to log into Xbox Live, the MTU test fails. I isolated the problem down to the VDSL modem because I still get the failure when I connect it directly to the modem. The router is not the issue because I used it in the U.S. and never had an issue, so it must be the VDSL modem causing the issue.

I do not have an easy access to another VDSL modem, so I wanted to know if anyone knew of a way to actually edit the MTU value on the VDSL modem (It is a NEC VF200FS). If I could just somehow bump up the MTU value on it I think I could get onto Xbox Live. But I'll take any possible solution, so does anyone have any advice?

On the other hand though, I could get another DSL modem from the states that I know is compatible. If I shipped in a new DSL modem would I just be able to plug it in and use it, or must it be specifically configured somehow by the ISP before it would work?

Thanks for the help, Halo 3 is so close and this is driving me mad.

Edit: As a note, I am at a University so I have no way of contacting the ISP about the matter, so I need to find a solution to this from my side somehow.

UberEv on

Posts

  • UberEvUberEv Registered User regular
    edited September 2007
    I'm really stuck here guys, does anyone have any advice? (Also, in a crazy funny note, I just turned on the Xbox to check something, and was prompted for the Dashboard Update that just came out, but obviously could not download it, so cruel).

    UberEv on
  • M0rphM0rph Registered User regular
    edited September 2007
    http://support.microsoft.com/kb/840419

    Yeah it seems its your router/modem needs to up its MTU to at least 1365 otherwise you can't connect. Not sure if you'll be able to do it yourself if your ISP didn't provide info on how to get into the modem's console. May have to call them up.

    M0rph on
  • UberEvUberEv Registered User regular
    edited September 2007
    M0rph wrote: »
    http://support.microsoft.com/kb/840419

    Yeah it seems its your router/modem needs to up its MTU to at least 1365 otherwise you can't connect. Not sure if you'll be able to do it yourself if your ISP didn't provide info on how to get into the modem's console. May have to call them up.

    Yeah I've googled for hours on this VDSL modem to see how to access any controls. I think if I could just get into it and fiddle with the MTU value I'd be fine, but I can find no way to connect to the modems properties like you do a router. This is maddening.

    UberEv on
  • DravalenDravalen Registered User regular
    edited September 2007
    1500 is the most common MTU value, if you can find a way to tweak the modem that's what I would use. 512(576) is the actual required MTU by spec, you should be able to find some tools out there on the net that can tell you what it's set to.

    Also, it could be something farther down the line, your path MTU is the smallest MTU from you to the xbox live servers and is what XBL actually tests. So chances are it could be totally out of your hands. I would call your ISP and talk to them.

    [edit]
    Missed the part about lack of ISP contact, dunno what to tell you then.
    [/edit]

    Dravalen on
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