Microsoft KB Archive/829469

= Known multiplayer issues in Halo: Combat Evolved =

Article ID: 829469

Article Last Modified on 11/14/2007

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APPLIES TO


 * Microsoft Halo: Combat Evolved for PC

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SUMMARY
This article describes the known multiplayer issues and workarounds in Halo: Combat Evolved.



Port and network settings
By default, Halo connects to the Internet through the following ports:
 * 80 (Transmission Control Protocol (TCP)) – Auto-update looks for and downloads updates through this port.
 * 2302 (User Datagram Protocol (UDP)) - Game host listens on this port.
 * 2303 (UDP) - Game client connects to host through this port.

You can set the Host and Client ports if you have to customize Halo to work on your network. If your network is configured in such a way that the default port range does not work, you must set the ports to values that you know will work. To customize the Host and Client ports for your network, follow these steps:
 * 1) Start Halo.
 * 2) Click Profiles.
 * 3) Select the profile that you want to change network settings for.
 * 4) Click OK.
 * 5) Click Settings, and then click Network Setup.
 * 6) Click Host Port or click Client Port, and then type the correct number as appropriate.
 * 7) Click OK.

For more information, see the second article link in the &quot;References&quot; section later in this article.

You can play Halo games from behind most routers and Network Address Translation (NAT) devices. If you have difficulty connecting from behind a router, review your router documentation to make sure that the Host and Client ports are not blocked for your PC.

Software updates
Each time you join or create an Internet multiplayer game, Halo automatically checks the Internet for the latest update. You may also run the stand-alone updating tool, Haloupdate.exe, from the root of the folder where Halo is installed. Halo checks for updates by using Hypertext Transfer Protocol (HTTP).

If you know that a game update is available but the game does not detect the update, check your Internet Explorer proxy settings to make sure that you can connect to the following Microsoft Web site:

http://www.microsoft.com/games/halo/downloads.aspx

Halo uses the same proxy settings as Microsoft Internet Explorer when checking for updates.

To check these proxy settings, follow these steps:
 * 1) Start Internet Explorer.
 * 2) On the Tools menu, click Internet Options.
 * 3) Click the Connections tab.
 * 4) * If you connect to the Internet manually, double-click the appropriate connection in the list at the top.
 * 5) * If you connect through a local area network (LAN), click LAN Settings.
 * 6) In the Proxy Server text boxes, make sure that the settings are set correctly for the proxy server that you or your network administrator has set up.
 * 7) If you are connected to the Internet and can reach http://www.microsoft.com, your proxy settings are set correctly.

If there is a Halo update available, download and install the update if you want to start or join an Internet multiplayer game. If there are issues with Auto-update, to obtain the update visit the following Microsoft Web site:

http://www.microsoft.com/games/halo/downloads.aspx

Note You must be logged in as an administrator of the computer to successfully install any updates for Halo.

Multiplayer issues and workarounds
The following table contains the most common multiplayer issues and their workarounds:

