Dsreplicagetinfo(pending_ops - Null) Failed Error 0x2105

If the error occurs during manual replication (e.g., "Replicate Now" in AD Sites and Services), it's likely a permission gap.

If the DC has been offline longer than the or if the metadata is severely corrupted, the most reliable path may be to perform a metadata cleanup using ntdsutil , demote the server (forcibly if necessary), and re-promote it. Dsreplicagetinfo(Pending_Ops Null) Failed Error 0X2105

Ensure the Enterprise Read-Only Domain Controllers group (if using RODCs) or the specific DC computer accounts have "Replicating Directory Changes" permissions on the domain partition. If the error occurs during manual replication (e

Use ADSIEdit or a similar tool to check the userAccountControl attribute. A healthy DC typically has a value of . If it is a lower value like 0x288, the system isn't recognizing the server as a trusted DC. 3. Verify Replication Permissions Use ADSIEdit or a similar tool to check

Before diving into complex AD edits, ensure you are running your diagnostic tools correctly.

If the secure channel is broken, you can reset the DC's machine account password using Netdom.exe .

Sometimes IPv6 using a loopback address as the primary DNS can interfere. Try temporarily disabling the IPv6 stack to see if connectivity restores. 5. Reset the Machine Account Password