Network is down ???

[Payback]

Everytime i try to connect to a server there comes this:
[R] Connection failed (10050: Network is down)

What does it mean and who could i get it away...
(Sorry for my bad English i'm Dutch)

[DYN_DaTa]

Take a look here (http://forum.flashfxp.com/showthread.php?s=&threadid=4745).