How to kill TCP-IP Listen or Open Connection while they are waiting to connect?

Question

We have an application that acts as a control panel for a customer's device.
It connects to the device using TCP-IP.
It can be configured to connect as a server (listener) or as a client.
The user of this applicaiton must have the ability to disconnect from the device and point and connect to a different device at a different IP and port.
When the user tries to connect to a device but can not (the device is not ready or the IP address is wrong) he wants to abort the connection, change the settings then restart the attempt to connect.  
How do I stop the TCP-IP Listen or TCP-IP Open Connection VIs?  We typically use a timeout of a couple seconds and this is a long delay for a respond to the operator when he wants to abort the connection attempt.

Answer 1

Thanks for the quick response. 
I was hoping there was a more elegant Labview solution that may work for both the wait on listen and the connect VI.
I tried to close the wait on listener by closing the ref from the create listener.
That works.  See attached picture. I use a queue to send the abort message.  The wait on listen state will be blocked until either a connection is made or an abort message is sent via the queue.  If a message is sent, the dequeue vi unblocks and causes the listener reference to close which will kill the wait on listen VI.  If a TCP-IP connection is made it will close the queue reference which will kill the dequeue vi.
I guess for the TCP-IP connect VI I can:
A. Use a couple second time out that is tolerable to the operator if then abort the connection attempt. (like you suggested)
or
B. Create a VI with the TCP-IP Open Connection VI in it.  I can launch that VI dynamically and wait until done (invoke node Run VI with Wait Until Done set to true).  If a connection is made it will finish and I will read the outputs using an invoke node (Ctrl Val.Get).  If it needs to be aborted, I will abort the VI using an invoke node (VI Abort).
Attachments:
Wait on listener with Abort example..JPG ‏265 KB