Dsreplicagetinfo(pending_ops Null) Failed Error 0x2105 Here

You might simply be running DCDIAG without administrative privileges.

Right-click your Command Prompt or PowerShell and select . Dsreplicagetinfo(Pending_Ops Null) Failed Error 0X2105

The destination DC's computer account is missing critical flags like SERVER_TRUST_ACCOUNT or TRUSTED_FOR_DELEGATION . You might simply be running DCDIAG without administrative