If your FogBugz server doesn’t have access to the Internet, it won’t be able to validate your FogBugz licenses automatically. In order to complete your FogBugz installation, point your web browser here:

http://[your FogBugz install]/?pg=pgOfflineLicense

You’ll see some information to email to Fog Creek Software. Then we will send you an email with a license key to enter into the form you see there, and you’ll be up and running with FogBugz.

It’s as easy as that!