SOAP Hangs, why ?

Hi all,

i've been using soapui for about two years and hit this problem so many times ! I decided to work on it with this forum help to get things working.

Problem: For no reason SOAPUI Hangs. This happens most of the time when i hit the "play" button to send the request to a service.

Workaround: Ctr+ alt + delete , kill soapui process , start over again

So, where can i start investigate this problem ? any log file ? any configuration ?

best regards

Rui Madaleno