Why is my MSN not working, but my Internet is?

I'm havin problems signin on to itunes, msn, and facebook, but my internet is working fine?

• My internet (windstream, DSL) is working fine. I can get on here, search google, and some other stuff. But if I try to sign on to MSN messenger I get a message that says "Signing ...show more

• Answer:

  well, you should check the Ports configuration. I know may be you don't know anything about it, but it will be a good idea to reset the dsl`s modem, it will be return to default configuration, because when you are playing games, or download new on-line programs, they make mistakes :). If it didn't work, i will look for firewalls in the security center (control panel), and of course disactivate the Norton, avg, mcaffe, or something like that. If nothing of this work, i would call the dsl support, and ask the what could be the problem. i hope it will help, good luck :)