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 ...
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
This link help resolve my issue with the same error.
I used the below format and an admin account: