I basically got a server going on an external IP address but when I try to connect using my external IP address I get this

[LOG 23:42:22.654] [973.9209] DarkMultiPlayer: Trying to connect to 24.60.208.17, port 1023
[LOG 23:42:22.657] [973.9213] DarkMultiPlayer: Connecting to 24.60.208.17 port 1023...
[LOG 23:42:43.651] [994.9187] DarkMultiPlayer: Connection error: >System.Net.Sockets.SocketException: A connection attempt failed because the connected party did >not properly respond after a period of time, or established connection failed because connected >host has failed to respond.

at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP, Boolean >requireSocketPolicy) [0x00000] in :0
at System.Net.Sockets.Socket.Connect (System.Net.EndPoint remoteEP) [0x00000] in unknown>:0
at System.Net.Sockets.TcpClient.Connect (System.Net.IPEndPoint remote_end_point) [0x00000] >in :0
at System.Net.Sockets.TcpClient.Connect (System.Net.IPAddress address, Int32 port) [0x00000] >in :0
at DarkMultiPlayer.NetworkWorker.ConnectToServerAddress (System.Object destinationObject) >[0x00000] in :0
[LOG 23:42:43.656] [994.9188] DarkMultiPlayer: Disconnected, reason: Connection error: A >connection attempt failed because the connected party did not properly respond after a period of >time, or established connection failed because connected host has failed to respond.

and I obviously don't connect. If I use my local IP address I can connect fine though. What's going on?

Yeah. Frickin' Comcast modems. Disregard me entirely please.