I do not believe it is an issue of how I am turning it on/off as I am doing it via the admin console. I have also confirmed that the laptop I am using (running OSX 10.6) has the firewall disabled.
The most important detail I believe is that when I log in to the admin console the status is either there and works perfectly or it is not there and nothing I have tried has made a difference including: resetting the PLM. rebooting the ISY, clearing the browser cache, clearing the Java cache, changing the Java order to 32 bit first, using firefox instead of safari, and turning off/unplugging potential interference sources. If I do not get this resolved then ISY is a non starter for me as one of my main reasons for going this route is for reliable remote monitoring - so far I have been unable to get consistent local monitoring.
Thanks for your excellent help.