#SYSTEM32 MISSING PDC FILE PASSWORD#

TCP and UDP Port 53 for DNS from client to domain controller and domain controller to domain controller.TCP Port 32 for Global Catalog from client to domain controller.

#SYSTEM32 MISSING PDC FILE PASSWORD#

TCP and UDP Port 464 for Kerberos Password Change.

TCP and UDP Port 445 for File Replication Service.

UDP Port 389 for LDAP to handle normal queries from client computers to the domain controllers.

TCP Port 139 and UDP 138 for File Replication Service between domain controllers.

UDP and TCP Port 135 for domain controllers-to-domain controller and client to domain controller operations.

UDP Port 88 for Kerberos authentication.

Can you ensure the below ports are allowed in the firewall? Any suggestion or advice will be very helpful. I would like to troubleshoot this issues, As well as i'm planning to recreate the DC. As a result no one is able to login to the domain.Д«oth the servers are not patched with any updates since company doesn't allow any down time. And if PDC is down for any reason then sometimes AD authentication itself is not happening. In this case i will either rejoin to domain or will reset the computer account password with 'Netdome.exe'ДЄll the FSMO roles are moved to the ADC because of this issues. Trust relationship errors, Often some random member servers will come up with the trust relationship error. So i pre-created the computer account in AD and then if i try to join to domain its successful.

I removed the client machine and added to domain again but same issue. I search in AD with the computer name i cant find it over there. After rebooting the client when i try to login with domain user it will give me an error like 'Security database doesn't have an associated computer in AD ' something. If i try to add a computer to AD it will get added successfully. There are strange things happening with AD.ДЎ. In my production network i have two Windows Server 2012 R2 Servers configured as PDC and ADC.

System32 missing pdc file