UPS plugin setup

On the UPS plugin, I can get it working properly if the UPS USB port is connected to the Octoprint pi directly. I prefer to have as little as possible connected to the pi, so I set up a NUT server on a separate pi.
I can access that pi remotely vi http and view status of the UPS. I have UPSD listening on port 3493
however, if I set the UPS plugin to the remote pi's IP and port of 3493, with the user/pass set properly, it doesn't see any UPS and I cannot select the UPS from the dropdown as it's empty. am I missing something?

logs, or preferably the System Info Bundle.

My server setup was dinked. Instructions I found for the server has issues. Purged and reinstalled from a new site that was extremely simple and now it's working