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AppInsight for Active Directory no longer polling after upgrade to 2020.2

Says " Unable to start polling."

I think I saw that on the original beta but ignore it at the time, and subsequent release candidates worked ok for me.

Anybody else seen this and know the fix. I did the upgrade this morning - there were minor niggles, best to reboot the Solarwinds servers before you start, but in the end everything seems fine.

It was working fine before the update, and if I hit Test Credentials that is successful.

All polling is via agents, which have updated automatically. It's on all domain controllers everywhere, all domains, all locations, on-prem and Azure. Except for one, single, node, which for whatever reason has an updated agent but appears to be working ! It turned out it was misconfigured and running as Inherit from node, and this machine uses an Agent so would have been running as SYSTEM.

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jonathanswift

Cortex

Plug-in Load Failed
Plug-in failed to start after 1 attempts.
» Reinstall plug-in

2.0.0.6393

In addition to the above, thought I would just share that I saw few dozen agents with Plug-in errors - I clicked re-install a few times and that seemed to sort it - except for the Linux boxes - I will probably update those manually.

jonathanswift

Tech Support are aware of an issue and I changed (in Advanced on template) from Agent to Agentless, and that did the trick.

spaghettishapes

For us, saw this occur after upgrade to 2020.2.1 - just one of hundred+ DCs had the issue. Removing/re-adding the SAM test, changing pollers did not help.

Agentless was not an option, agented server in DMZ with only single port accessible. Other similar ones fine with set to Agent.

Support article found refers to .Net mismatch, but checked and all ok.

https://support.solarwinds.com/SuccessCenter/s/article/AppInsight-for-Active-Directory-stops-working-after-upgrade-to-SAM-2020-2?language=en_US

Noticed that the number of plug-ins on similar agent monitored servers were almost double to the expected, previous version.
Re-agenting involved another's assistance due to access so instead changed server to ICMP polling, then back to Agent polling. Rebooted server, the additional plug-ins reinstalled, re-added the SAM test and all ok.

Hope this helps someone.