* I can't download or voice chat using Xfire. Why not and how do I fix this?

Chances are, if you can't voice chat or download files, you are failing our 'NAT check'. To check this, click the Files tab in your Xfire client, open the info view, scroll to the bottom, you should see NAT Check Failed.

As of Xfire version 1.55 we now support Universal Plug and Play or UPnP. If you are using a hardware router that supports UPnP (most name brand routers like Linksys, Netgear, D-Link do) open your router configuration (this is usually done through a web browser) and make sure UPnP is enabled. Once you have done that and saved the setting, run Xfire and it should auto detect your NAT device.

If your router does not have UPnP, there is still another way to fix this. Both hardware and software firewalls allow you to 'forward' a port directly to a specific machine.

If you forward all UDP traffic on port 25777 to the machine that is having the problem, and then restart Xfire, you should then pass nat check, and be shown as a NAT Type 1. To check this, go to your files page, open the info view, scroll to the bottom, you should see either NAT Check Failed, or NAT Type 1. Once your NAT type shows as 1, you should be able to download files (inlcuding Xfire updates) as well as using other UDP features such as typing notification, and voice chat.