Super 14 wrote:

Is it my router preventing Outlook working properly? If so, how can I
fix this?

It could be, but it's not the most likely cause. It could also be your
antivirus program, if you have it configured to scan incoming messages.
However, you need to do a little diagnosis. The first thing to test is if
you can ping your mail server. The next thing to try is to see if you can
telnet to the mail server on the port your school told you to use for POP
connection.
--
Brian Tillman