I now have the KML NetworkLink showing data on the map (ended up being that it was not reading the clientaccesspolicy.xml file) but when it performs the refresh it is not really refreshing the points generated from the KML link. It looks like it is refreshing the original KML points and not pulling any of the new points added or changed. I ran Fiddler after ading the network-linked KML layer to the map but Fiddler did not reveal anything that looked like it was pulling fresh KML. Actually, Fiddler show no new sessions when I added the network-linked KML layer to the map and cleared all the original sessions. My refresh interval was set to 10 seconds. And you can see the KML points flash on the map every 10 seconds. If I move one point of data that the network-linked KML is pulling from, the map shows nothing changed.
Am I missing something in the KML link? I have refreshMode set to onInterval and refreshInterval set to 10 seconds.