Change of AD site generating WMI errors on MX security appliance

[INS]

Hello-

I work for an organization that has geographically changed from two physical sites to a single physical site.  Two domain controllers are located on the remaining site.  Previously, AD Sites and Services had two sites, one defined for each physical location.  As of a week ago, only one physical site existed in AD Sites and Services - for the remaining location (SiteA).  Seeing as there is only one physical site remaining, I saw no need to keep SiteA and moved all AD-related objects to Default-First-Site-Name and then deleted SiteA.  In other words, I set everything back to out-of-the-box defaults.

I did not see any impact on other Active Directory operations.  However, I now am seeing a WMI error under on my Meraki MX security appliance under Security & SD WAN-->Active Directory Authentication-->Active Directory Servers.  I implemented the fixes in this article, without success:  Active Directory Issue Resolution Guide - Cisco Meraki.

Suggestions?

Thanks

[alemabrahao]

Check all required settings:

https://documentation.meraki.com/MX/Content_Filtering_and_Threat_Protection/Configuring_Active_Direc...

[INS]

1.  In AD Sites and Services, the site is Default-First-Site-Name.  This is the only site.  There is a single subnet - 192.168.11.0/24.

2.  Security auditing has been verified as both Success and Failure enabled on the Default Domain Controllers Policy.

3.  The Global Catalog role has been enabled on both of the two DCs.

4.  I digital certificate for both domain controllers was located under Personal-->Certificates.  The certificates are valid.

5.  The certificates meets the requirements for TLS.

[alemabrahao]

So, all settings are good, my suggestion is to open a support case.