Recently I had a strange situation where one of my DCs didn't have a current copy of Group Policy objects so PCs authenticating to it didn't behave as expected. Took me some time to figure it out. I restarted the problematic DC (and after that, 2 others) and everything went back to normal.
Now I have a folder:
on 2 of my 3 DCs but afaik, everything is replicating properly.
I could not find a reason for it yet.
What should I do ?
Also, I did dns check and everything is fine but I have some warnings related to missing AAAA records for domain controllers. Should I just ignore it ? I don't really want to disable ipv6 as I read a lot conflicting advices - some people say disable, some - do not.