Identity Awareness Gateway may lose connection with Domain Controllers configured for the ADQuery

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Solution ID	sk113216
Product	Identity Awareness
Version	R77.30
Platform / Model	All
Date Created	06-Sep-2016
Last Modified	27-Jul-2017

Symptoms

Identity Awareness Gateway may lose connection with Domain Controllers configured for the ADQuery.
"Connectivity Error" is displayed in SmartView Monitor for several Domain Controllers.
Output of "adlog a dc" command on Identity Awareness Gateway shows "no connection" status for these Domain Controllers.
Example:
my.domain.com 192.168.0.2 4870 no connection
The "test_ad_connectivity" tool (sk100406) on Identity Awareness Gateway returns success for both LDAP and WMI.

Cause

More than 256 Domain Controllers are configured for the ADQuery.

Current limit of Domain Controllers for ADQuery is 256.
If there are more than 256 DCs configured for the ADQuery, Identity Awareness Gateway may lose connection with random DC.

Solution

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