ramon82

Hi again i discovered that this seems to be an AD issue through event viewer:The Security System has detected a downgrade attempt when contacting the 3-part SPN ldap/JUPITERDC01.jupiter.local/[email protected] with error code "The attempted logon is invalid. This is either due to a bad username or authentication information. (0xc000006d)". Authentication was denied.​Any ideas??

I am a bit lost...can you direct me to a simple step-by-step which i can follow?

Yes I did however problem persists

Windows Server 2016 - DNS/AD problemHi all - at one point our DC froze and we had to do a restart. It installed a lot of updates and then once it got up and running again we started experiencing problems with DNS, passwords, mapped drives etc - please refer to screenshots. Its as if the communication between the desktops and the server got out of sync somehow.Any idea what we can do please?Thank you