Have the exact same issue with an identical server and UPS setup. Tripp-Lite tech support still hasn't come up with anything. We have always used APCs in the past, and should have stayed with them this time.

New HP DL 180 G6 w\ SBS 2011. Plugged in USB cable for UPS and the UPS is detected by Windows as a Human Interface Device. Device Manager shows no Batteries. No battery options available in Control Panel>Power Options The UPS manufacturer just said to try another USB cable. Didn't help... What next?

What is the brand/model of your UPS? I had a similar problem with an APC one. Do you have the UPS software (PowerChute for APC) installed? www.oguzpastirmaci.com

Tripp-Lite Smart 1500 RM2U Powerchute is installed, but is unresponsive.

Didn't have any TrippLite before but here's how I solved my APC problem of which I still don't know the cause. - Remove the USB cable from server - Uninstall the UPS software (PowerAlert in your case) and any of its requirements (Java Runtime Environment for example). - Restart the server. - Restart the UPS. - Plug the USB cable. - Download the latest software from the manufacturer's web site and install it. www.oguzpastirmaci.com