Why can't i sign in??

When i sign in it says......signing in to Windows Live Messenger failed because the service is temporarily unavailable. Please try again later. ERror code:800401f3......I have tryied to do this for about 2 days now!! it lets me sign into it when i'm not at my house! it doesn't make any sense...Plz someone help give me something to try! plz plz plz
Megan, September 2007


done
what is troubleshoot well thats what it sayes when I try to sign in to my msn

arnold.longworth, November 2007