I haven't seen that feature. What version ASC?
I was having problems with nexgen, some people would connect to the server and yet it wouldn't show they've connected and then they'd be kicked off shortly after.
I might "re-try" nexgen shortly, but basically i apointed one person who was having the problem to admin, and when they were connected (right after i gave it them) it said they were offline.
As i said though, i haven't seen the command or haven't seen the way to teleport using asc...
My NEW ip is : 188.8.131.52:7777, i've terminated my old one.
If you don't try then how do you know?