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Portal for ArcGIS cannot connect to Active Directory

Question asked by tlubinski on Apr 2, 2020


Once a day I have the following warning in Portal logs:


Portal for ArcGIS cannot connect to Active Directory LDAP server at ldaps://[ip_add1]:3269 (error: SocketException: Connection reset by peer: socket write error). Adding it to the list of bad LDAP urls, and will not be connected to for next 24 hours. Current list of bad LDAP urls are [ldaps://[ip_add1]:3269, ldaps://[ip_add2], ldaps://[ip_add3]].


I wonder, what does it mean?


I'm using Integrated Windows Authentication configured by tips on website Use Integrated Windows Authentication with your portal—Portal for ArcGIS (10.8) | Documentation for ArcGIS Enterprise 


What's intresting, users can log into the Portal by domain account without any issues.


Do you have any idea, why this warning appears in those logs?

Portal version 10.7.1