Ok, I found out a little more.
It works fine when I browse to localhost:8180 from the machine that's running XWiki.
However, if I try it from another PC on the local network using 192.168.1.196:8180 I get
the "Connection Interrupted" error.
Do I have to bind something somewhere?
If requested I can attach a (large) log file with the exception.
Thanks again,
Trevor