Discovery_NT completes on select servers but no managed objects ever appear in console (NETIQKB43074)

Discovery_NT completes on select servers but no managed objects ever appear in console (icon remains with a question mark as undiscovered).

Unable to successfully complete Discovery_NT on an AppManager Agent server when the server is on a network utilizing a Black Hole Router.

To repair this issue at the server level, follow the extensive instructions in the following article at Microsoft TechNet:

Diagnosis and Treatment of Black Hole Routers

After you apply the MS registry entry suggested in the TechNet article, reboot the server and verify the discovery job completes successfully.

This issue is a result of a known occurrence between the Microsoft Operating System and the Black Hole Router.

Formerly known as NETIQKB43074