Workflow

How to use LDAP Error Code Checker

Start with the raw error, extract the result code and AD data subcode, then check the smallest likely cause first.

  1. Paste the full bind error, not just the final exception message.
  2. Confirm whether the LDAP result code is 49, invalid credentials.
  3. If an AD data code appears, use it to narrow the cause.
  4. Check bind DN or UPN, password, account state, lockout, expiration, and reset flags.
  5. Record the failing application, domain controller, timestamp, and owner before retrying.

Next action

Use the home page checker, then convert the result into a team runbook if the same error repeats.

Open checker