Since I got my new Linksys WRT54G router, I’ve had a bit of a problem playing Call of Duty online. I could join games and play all I wanted, however, when my girlfriend wanted to play too, it would disconnect both of us from the games. I searched and tried different things, also upgraded the firmware, all to no avail. I finally solved the issue by setting up a port trigger for the port the game uses.

I had tried before to setup a port trigger, but kept getting errors about the ports being the same. I don’t know what I did different the last time I tried it, but it seems to have worked. I just set the application name to “CoD” and set all four port fields to 28690, which is the default port for Call of Duty.

This should work for CoD, CoD2, and possibly CoD4 (but I’m unsure since I haven’t looked at the ports for it.) I checked the “Enable” checkbox and then clicked the “Save Settings” button. Once the router saved the settings and redirected me back to the page, I was then able to join a game, and have my girlfriends computer do the same.