No Mapping Between Account Names And Security Ids Was Done: A Troubleshooting Guide
Introduction
As an IT professional, I have encountered several error messages in my career, but one message that always gives me a headache is “No Mapping Between Account Names And Security Ids Was Done.” This error message is particularly frustrating because it can be difficult to pinpoint the root cause of the problem. In this article, I will share my personal experience with this error message and provide a detailed explanation of what it means and how to fix it.
What Does “No Mapping Between Account Names And Security Ids Was Done” Mean?
When you see the error message “No Mapping Between Account Names And Security Ids Was Done,” it means that the account name in the security database does not match the account name in the local database. This error message can occur for several reasons, including a corrupt user profile, a failed SID migration, or a mismatch between the user account and the computer account.
How to Troubleshoot “No Mapping Between Account Names And Security Ids Was Done”
If you encounter the “No Mapping Between Account Names And Security Ids Was Done” error message, the first step is to determine the root cause of the problem. Here are some troubleshooting steps to follow:
Step 1: Check the User Profile
One common cause of this error message is a corrupt user profile. To check if this is the case, log in to the affected computer using an administrator account and create a new user profile. Then, log in to the new user profile and see if the error message still appears. If the error message disappears, then the problem was with the user profile.
Step 2: Check the SID Migration
Another common cause of this error message is a failed SID migration. If you recently migrated user accounts from one domain to another, then you should check if the SIDs were properly migrated. You can use the “dsquery” command to check if the SIDs are correctly mapped to the user accounts.
Step 3: Check the User and Computer Accounts
Sometimes, the error message can occur if there is a mismatch between the user account and the computer account. To check for this, open the Active Directory Users and Computers console and locate the computer account. Then, check the “Security” tab to see if the user account is listed. If the user account is not listed, then you should add it and see if the error message disappears.
Conclusion
In conclusion, the “No Mapping Between Account Names And Security Ids Was Done” error message can be frustrating to troubleshoot, but it is important to determine the root cause of the problem to fix it properly. By following the troubleshooting steps outlined in this article, you can identify the cause of the error message and fix it quickly.
Q&A
Q: Can this error message occur on a standalone computer?
Yes, this error message can occur on a standalone computer if there is a mismatch between the user account and the computer account.
Q: Can this error message occur on a domain controller?
Yes, this error message can occur on a domain controller if there is a problem with the SIDs or if there is a mismatch between the user account and the computer account.