Forum Discussion
Exchange 2016 Event 2159 ADAccess Validation Failed
We intermittently see event id 2159 generated on our Exchange 2016 Server (CU23 Jan23SU). They seem to have appeared sometime in the past month. We tend to see about 50-150 events per day. We've e...
I am also using CS as antivirus
Well thats an intresting...
I will open a case at CS , see if they have any special settings for Exchange
We tried to do all the recommended exclusions on Exchange and that did not fix it. Then we removed it all together from Exchange as a test and that did not fix it either. Microsoft is saying it has something to do with the LDAP query fro EXCH to Domain controllers and some thing is changing the response. Our next step is to look at our CS install on our DC’s.
