A common culprit for "access denied" is a misconfigured computer account. Run DCDIAG /TEST:MachineAccount on the affected DC.
If the secure channel is broken, you can reset the DC's machine account password using Netdom.exe .
Troubleshooting the "DsReplicaGetInfo(Pending_Ops Null) Failed Error 0X2105" in Active Directory
In ADSIEdit , right-click the naming context (e.g., dc=contoso,dc=com ), go to Properties > Security , and verify the permissions. 4. Audit DNS and Network Settings
Run: netdom resetpwd /server:Source_DC_Name /userd:Domain\Admin /passwordd:* . When to Rebuild
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
