We started having problems with replication between our two Domain Controllers this past Monday. We had to shutdown one of the Domain Controllers and because of a bad CMOS battery, it came back up showing the wrong time. The DCDIAG results are attached. This is a WIndows 2000 mixed domain (although both Domain Controllers are WIndows 2000). Results of DCDiag on DC that was not shutdown/wrong time: Domain Controller Diagnosis Performing initial setup: Done gathering initial info. Doing initial required tests Testing server: Default-First-Site-Name\DC2 Starting test: Connectivity ......................... DC2 passed test Connectivity Doing primary tests Testing server: Default-First-Site-Name\DC2 Starting test: Replications [Replications Check,DC2] A recent replication attempt failed: From DC1 to DC2 Naming Context: CN=Schema,CN=Configuration,DC=tpsntdomain,DC=com The replication generated an error (5): Access is denied. The failure occurred at 2008-01-16 16:50.41. The last success occurred at 2008-01-14 12:45.43. 52 failures have occurred since the last success. [DC1] DsBind() failed with error -2146893022, The target principal name is incorrect.. [Replications Check,DC2] A recent replication attempt failed: From DC1 to DC2 Naming Context: CN=Configuration,DC=tpsntdomain,DC=com The replication generated an error (5): Access is denied. The failure occurred at 2008-01-16 17:19.25. The last success occurred at 2008-01-14 13:03.55. 482 failures have occurred since the last success. [Replications Check,DC2] A recent replication attempt failed: From DC1 to DC2 Naming Context: DC=tpsntdomain,DC=com The replication generated an error (5): Access is denied. The failure occurred at 2008-01-16 17:20.41. The last success occurred at 2008-01-14 13:28.40. 369 failures have occurred since the last success. ......................... DC2 passed test Replications Starting test: NCSecDesc ......................... DC2 passed test NCSecDesc Starting test: NetLogons ......................... DC2 passed test NetLogons Starting test: Advertising ......................... DC2 passed test Advertising Starting test: KnowsOfRoleHolders Warning: DC1 is the Schema Owner, but is not responding to DS RPC Bind. [DC1] LDAP bind failed with error 31, A device attached to the system is not functioning.. Warning: DC1 is the Schema Owner, but is not responding to LDAP Bind. Warning: DC1 is the Domain Owner, but is not responding to DS RPC Bind. Warning: DC1 is the Domain Owner, but is not responding to LDAP Bind. Warning: DC1 is the PDC Owner, but is not responding to DS RPC Bind. Warning: DC1 is the PDC Owner, but is not responding to LDAP Bind. Warning: DC1 is the Rid Owner, but is not responding to DS RPC Bind. Warning: DC1 is the Rid Owner, but is not responding to LDAP Bind. Warning: DC1 is the Infrastructure Update Owner, but is not responding to DS RPC Bind. Warning: DC1 is the Infrastructure Update Owner, but is not responding to LDAP Bind. ......................... DC2 failed test KnowsOfRoleHolders Starting test: RidManager [DC2] DsBindWithCred() failed with error -2146893022. The target principal name is incorrect. ......................... DC2 failed test RidManager Starting test: MachineAccount ......................... DC2 passed test MachineAccount Starting test: Services ......................... DC2 passed test Services Starting test: ObjectsReplicated ......................... DC2 passed test ObjectsReplicated Starting test: frssysvol There are errors after the SYSVOL has been shared. The SYSVOL can prevent the AD from starting. ......................... DC2 passed test frssysvol Starting test: kccevent An Warning Event occured. EventID: 0x80000632 Time Generated: 01/16/2008 17:20:41 (Event String could not be retrieved) ......................... DC2 failed test kccevent Starting test: systemlog An Error Event occured. EventID: 0xC0040011 Time Generated: 01/16/2008 17:17:15 Event String: RSM cannot manage library PhysicalDrive1. It ......................... DC2 failed test systemlog Running enterprise tests on : tpsntdomain.com Starting test: Intersite ......................... tpsntdomain.com passed test Intersite Starting test: FsmoCheck ......................... tpsntdomain.com passed test FsmoCheck Would appreciate help with this problem.