elixired;
Do you use dial-up, or broadband internet?
Can you try at a friends house?
It sounds like you did something to get your IP blocked by MSN. If it's the case, you need to contact them and see about removing the ban.
Are you on a corporate Network?
If you are, then you may be blocked from connecting to MSN or the hotmail e-mail service. You'll have to talk to your Network Admin about that one.
You may be asked your IP if you contact MSN, go to
ShowMyIP, and that will tell you your WAN (Internet) IP Address.