We recently upgraded from NPM v12 to v12.01 (withe the Orion Platform 2016.2-Hot Fix 1). Since the upgrade, we are frequently dealing w/problems discovering as well as re-discovering devices.
For example,
Sometimes, the Network Sonar Discovery (aka NSD) aborts w/an error stating that there was a problem during discovery. Other times, the NSD finishes but w/the error "Exception occurred during discovery import."
Also, when I do a List Resources on my devices, sometimes it just runs for non stop until I press the Cancel button. The only workaround then is to use the Change Polling Engine option and then it works.
I already ran a repair on the Core Services installer for my core and polling engines. Yet, discovery problems persists. I consulted w/SW tech support but so far, none of their suggestions have worked.
If any of your have run into similar issues, I would very much like to hear from you and know what worked for you.
Thanks.