Invalid Ip?

[Diax]

I'm using windows xp sp2 professional. When I use windows update and after rebooting, the professional doesn't appear when loading. When it is loaded, I try to connect to the internet but it says something like, 'Invalid Ip'. I can't connect to the internet so I had to system restore. Any help?

 

[Maleficent]

Are you using a wireless internet or wired?