Hello All,
I have installed and configured 2 new DCs, I have no errors when I run
dcdiag /q and netdiag/q on both of the servers, but when I checked the Event
Viewer / System of the DC1 I have the following warning, and this error is
reproduced every one hour:
The Security System detected an authentication error for the server
DNS/DC1.mygroup.com. The failure code from authentication protocol Kerberos
was "The attempted logon is invalid. This is either due to a bad username or
authentication information.
(0xc000006d)".

Also Please note that on DC1 is the server where the DNS is configured.
Can somebody I need to be sure of my DCs before proceeding with joining
machines.

Thanks,
SSR