I own and run a halo pc server for my clan and for some time Gt has it as dead. I am looking at the server console as I type, it is not dead and has players on it. On the manage page is says that the server can not be scanned, but the firewall settings haven't been changed since I first started it back in November i think it was. Any help that gets this worked out is greatly appreciated.

You could use HLSW (hlsw.org) to determine if the server can be scanned. Note: Make sure you would use this outside of the network the server is on.

If it has been dead for some time, you may want to think back to what has changed with the server around that time. eg. Did you add mods? Change server configs? etc

It seems after about 24 hours after moving the server to a different machine the server is now being scanned again. Seemed to have fixed itself.