Security policies were propagated with warning. 0x534 : No mapping between account names and security IDs was done.

Computer Gladiator 441 Reputation points
2020-12-08T17:45:29.687+00:00

Hello, we are getting many 1202 events. Security policies were propagated with warning. 0x534 : No mapping between account names and security IDs was done.
When going through the suggested steps to find the problem account. It displayed domain admins.
The full recommended steps are as follows:
Security policies were propagated with warning. 0x534 : No mapping between account names and security IDs was done.

Advanced help for this problem is available on https://support.microsoft.com. Query for "troubleshooting 1202 events".

Error 0x534 occurs when a user account in one or more Group Policy objects (GPOs) could not be resolved to a SID. This error is possibly caused by a mistyped or deleted user account referenced in either the User Rights or Restricted Groups branch of a GPO. To resolve this event, contact an administrator in the domain to perform the following actions:

  1. Identify accounts that could not be resolved to a SID:

From the command prompt, type: FIND /I "Cannot find" %SYSTEMROOT%\Security\Logs\winlogon.log

The string following "Cannot find" in the FIND output identifies the problem account names.

Example: Cannot find JohnDough.

In this case, the SID for username "JohnDough" could not be determined. This most likely occurs because the account was deleted, renamed, or is spelled differently (e.g. "JohnDoe").

  1. Use RSoP to identify the specific User Rights, Restricted Groups, and Source GPOs that contain the problem accounts:

a. Start -> Run -> RSoP.msc
b. Review the results for Computer Configuration\Windows Settings\Security Settings\Local Policies\User Rights Assignment and Computer Configuration\Windows Settings\Security Settings\Local Policies\Restricted Groups for any errors flagged with a red X.
c. For any User Right or Restricted Group marked with a red X, the corresponding GPO that contains the problem policy setting is listed under the column entitled "Source GPO". Note the specific User Rights, Restricted Groups and containing Source GPOs that are generating errors.

  1. Remove unresolved accounts from Group Policy

a. Start -> Run -> MMC.EXE
b. From the File menu select "Add/Remove Snap-in..."
c. From the "Add/Remove Snap-in" dialog box select "Add..."
d. In the "Add Standalone Snap-in" dialog box select "Group Policy" and click "Add"
e. In the "Select Group Policy Object" dialog box click the "Browse" button.
f. On the "Browse for a Group Policy Object" dialog box choose the "All" tab
g. For each source GPO identified in step 2, correct the specific User Rights or Restricted Groups that were flagged with a red X in step 2. These User Rights or Restricted Groups can be corrected by removing or correcting any references to the problem accounts that were identified in step 1.

I am not clear on how to proceed with the last step 3 (g).

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Accepted answer
  1. Computer Gladiator 441 Reputation points
    2020-12-17T21:38:20.427+00:00

    They are bother removed and the event error has stopped appearing. Thank you.

6 additional answers

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  1. Daisy Zhou 18,701 Reputation points Microsoft Vendor
    2020-12-09T06:09:38.323+00:00

    Hello @Computer Gladiator ,

    Thank you for posting here.

    We can try the steps in the following link to see if we can find the account.

    How to fix error “No mapping between account names and security IDs” in Active Directory
    https://www.rebeladmin.com/2016/01/how-to-fix-error-no-mapping-between-account-names-and-security-ids-in-active-directory/

    Hope the information above is helpful. If anything is unclear, please feel free to let us know.

    Tip: Please note: Information posted in the given link is hosted by a third party. Microsoft does not guarantee the accuracy and effectiveness of information.

    Best Regards,
    Daisy Zhou

    1 person found this answer helpful.
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  2. Computer Gladiator 441 Reputation points
    2020-12-09T16:35:56.133+00:00

    Hello Daisy, in my case I see the problem at Computer Configuration > Security Settings > Restricted Groups.
    The groups names are Domain admins and Local admin. Not sure how they got there. Should these be removed?

    0 comments
  3. Daisy Zhou 18,701 Reputation points Microsoft Vendor
    2020-12-11T09:38:49.157+00:00

    Hello @Computer Gladiator ，

    Thank you for your update.

    If this group "Local admin" is custom group? Is it in AD now?

    If this group "Local admin" is custom group and this group is not in AD, we can remove them to see if it helps.

    Best Regards,
    Daisy Zhou

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  4. Computer Gladiator 441 Reputation points
    2020-12-11T14:49:27.167+00:00

    Yes, Local Admin is a custom group and not a default group.
    I have removed it.

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