Offline on all modpacks!!!

[callum butler NTG]

Launcher Version: 377

Operating System: Windows 8.1

Java Version: Mod recent

Antivirus Program: Norton

Description of Problem:

I try to open my modpacks and they say Offline in the top right. I try to open them and i get an error when i try to join a server name:

connection lost:

Failed to login: java.net.SocketException: Address family not supported by protocol family: connect

Please help im not sure whats happened :/

Error Messages:

connection lost:

Failed to login: java.net.SocketException: Address family not supported by protocol family: connect

Error Log:

None