Unable to connect to Yogcraft server via IP

[Velocity192]

I'm currently unable to connect to my server in any other way than using 'localhost', and even then the server is incredibly laggy. Ports are forwarded correctly and I can run a server on vanilla minecraft just fine. I'm on Windows 8 and FTB v1.2.6. No mods have been added to the server pack. No errors are shown other than the ForgeMod load errors, but my friend had the same problems and his server works fine. Thanks in advance for any help.

 

[cjm721]

Check your firewall setings.

 

[Velocity192]

Check your firewall setings.

I thought that would be the problem, but my firewall won't let me create an exception for a .jar file so I have no idea how to allow the server through my firewall.

 

[cjm721]

Well turn it off entirely for a bit and see if it works first before trying to find how to add exceptions.