Client: Can you take a look at my machine? Every time I connect to one of the virtual servers, it just disappears from my list.”

Me: That’s odd! Can you show me how you connect?

They opened the client program, and double clicked on a server name. It launched with no problem.

Me: Hm. And how do you usually disconnect?

They found the server name in the list, right clicked it, and chose “delete” from the pop-up menu.

Me: …I think I found your problem.