Unlikely.
MSN & IE use a common TCP/IP stack, so if works in one it should work in the other. You can further test this theory by typing a web address into windows explorer and seeing if it comes up.
As for a solution, slap yourself for using IE like a luddite and download firefox. Double slap for clicking 'diagnose this problem' and thinking that it would actually fix the issue, or even be remotely helpful.