Two or more people are running Altitude on your local network and your router is confused about where to send packets.

Each computer running Altitude must specify a different port for communications.

• Start Altitude
• Click Options
• Click Gameplay
• Change the port to match the Port in the table below.

After you have configured each Altitude instance you must configure your router to forward UDP packets. You may find the detailed guides on portforward.com helpful - follow the link and search for your router model. NOTE: portforward.com is in not affiliated with Nimbly Games, LLC.

The port forwarding configuration page on your router should look like this when you're done: