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What network and firewall settings are required to connect to XBOX Live through my home network?

I had everything set up correctly and working but had to reset my router after a firmware upgrade and lost all my settings.

Oh, and I also need the settings to enable it to work as a Media extender.

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2 Answers 2

up vote 6 down vote accepted

Make sure the following ports are open to the XBOX. According to the support site these are the ports used by XBOX Live

  • TCP 80
  • UDP 88
  • UDP 3074
  • TCP 3074
  • UDP 53
  • TCP 53

For Media Extender you need:

  • UDP 3776
  • TCP 3390
  • UPnP Framework
  • Media Center (on your PC) usually found at c:\windows\ehome\ehshell.exe

I don't know precisely what settings are necessary on UPnP and Media Center, but you can refer here for more settings (on XP)

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If you need help with the how of actually opening the ports listed, I suggest you take that question to SuperUser, but here is the what. –  Mechko Jul 26 '10 at 0:00
    
I think I can manage applying those settings. Thanks. BTW: I saw some sites suggesting I use the XBOX's IP address in the DMZ setting, is that advisable? It sounds like it might create some security risks. –  JohnFx Jul 26 '10 at 0:05
    
I don't know if it will create a security risk, but as with most networking problems, if a something works, don't change it. I would only recommend doing that if XBOX Live doesn't work with the ports opened. –  Mechko Jul 26 '10 at 0:11
    
Either manually open ports, or make the Xbox a DMZ, or preferably enable UPnP on your router. Don't combine methods. @Mechko the second part of your answer suggests combining UPnP with open ports. This would make the open ports redundant (and perhaps counterproductive). –  Hugh Allen Dec 27 '12 at 22:21
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You may also need "a minimum MTU setting of 1364" on your router.

My connection would only work intermittently without this.

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Is it good enough to just set the MTU to "Auto" mode or should I manually specify a value above 1364? –  JohnFx Jul 26 '10 at 16:21
    
Auto tends to choose the largest available MTU, so you'll probably be good with auto –  Mechko Jul 27 '10 at 11:54
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