Connection Failure

Good evening! First off, I am an extremely new user to ServiceDesk Plus; not with regard to help desk software and conceptual design. This software has been deployed in a medium sized company to centralize our problem tracking more efficiently; it has been working wonderfully for several weeks until this point. Users report being unable to access the application via Web. I have spent several hours researching the documentation and browsing the forums, though not more than a couple steps ahead of where I was when I began. For this I ask anyone willing for assistance.

Application Symptoms
- Logon failure from client workstation via HTTP
- Logon failure from hosting server via HTTP

Steps Taken Thus Far
- Shutdown application process
- Restarted SDP server
(Retested connection; symptoms remain unchanged)

- ITSteve