It's weird because to get that output, at least on mine, it needs to connect to Intiface to display the Connected to buttplug message and I get your other message when I disconnect. I had a weird feeling like Windows firewall was blocking the connection, but it seems like it's actually making the connection, but for some reason isn't hanging on to it.
Can you take a screenshot of the log screen of Intiface after the connection refused message pops up in Restim?









