I have an APC UPS with a USB port. I am trying run a QNAP TS-251 off the UPS, along with a switch, and the mac mini (headless) running OSX server. The QNAP is attached to the UPS with the USB port and sees it just fine. I'd like to have the mac mini get a notification when the power goes down to shut down. Their is a setting in the QNAP software to just that, and I downloaded an app called APCAGENT to run and act as a slave. I think I am screwing up the ports somehow. I think the mini running OSX server should have a fixed ipaddress, I put that in the QNAP that will act as the master, but I don't know a specific port. APCAGENT just has a question mark and doesn't see the UPS, but Im not even sure if the QNAP and APCAGENT are supposed to work together. Any suggestions? Am I missing a port or some forwarding i need to setup?