On my main DC (PDC) I have started to sporadically get event ID 1869 ,1655 ,1869, 1126 global catalog errors They last for a few hours, once an hour
The only changes that I recently did were added a self signed certificate to that DC. (I did it to try and configure LDAPS) and upgraded DFL/FFL from 2003 to 2008R2
I did repadmin/ replsum and everything looks good. I dont hear any complaints from end users. This is the only DC that I am getting these errors on.
What could be causing these errors?
I have attached the errors in even viewer.
If server holding PDC FSMO role, you can transfer FSMO to other DC and run below command to check if successful:
if last two commands fails, you can run:
If command successful, check directory service event logs for successful GC located and ignore previous error messages