Background: I've been using Subsonic for _years_ now, across multiple PCs and locations. I haven't used it in a few months, but recently decided to go back and use it. It's always one of the first things installed on a new OS wipe.
I have been trying to connect to it today, and cannot access it anywhere outside of the hosting PC. The only major thing that has changed is the upgrade from win8 (where it worked fine) to win8.1. This is my first time trying it since that upgrade to 8.1.
When I try to access it on the PC where it's running, it works great. Even the subsonig.org redirect from my premium account works great. Localhost works, local IP works, and XX.subsonic.org works. From any other pc or device, it is unreachable.
I've completely disabled the Windows Firewall, and am trying to access the host system's IP _directly_ from other PCs and devices on my network. All other network apps work: XBMC, Remote Desktop, Ping, SSH, and Apache, all work fine when attempting to connect to the host.
What am I missing here?

