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2042Directory Service (DC)Replication & DCsCRITLast updated:

It has been too long since this machine replicated

What it means

The DC crossed the tombstone lifetime, so replication is blocked entirely.

First steps

  1. 1Do not bypass it in the registry unless you know exactly why.
  2. 2The correct path: demote, clean metadata, rebuild.

Related events

This reference is a starting point for investigation, not a replacement for your organisation's security policy.