Hello, Provide more details like
1. Are you getting any errors in the page while login?
2 Is it like an access denied message?
3. OWA page itself is not accessible?
like this
https://webmail.bluffton.edu/owa/auth/logon.aspx?url=https://webmail.bluffton.edu/owa/&reason=0
This is the login site I usually go too but it is telling me that I have an incorrect username or password and I know for a fact that I have the right password and username
Okay. Have you tried to login like domain name\username and user@domain.com?
Check the active directory and make sure that the account is not disabled?
Hope, all the Exchange services are up and running, databases are mounted etc.
I have never heard of an administrator this is a university email and I have used it for close to 8 years