An easy way to fix error 18456 Error status 11 Problems

August 26, 2020 by Luca Yagan


If you are experiencing error code 11456, error state 11 on your computer, we recommend that you read these troubleshooting tips.

States 11 and 12 mean that SQL Server was able to authenticate you, but was not able to verify you with Windows Basic Permissions. Windows logon may not have a profile, or permissions may not be verified due to User Account Control. Try to run SSMS as administrator and / or disable User Account Control.



I am an administrator and have run both scripts for four fields. The results are the same.

How do I login as admin in SQL Server?

Create Administrator for Microsoft SQL Server
  1. Connect to the Windows server using Remote Desktop Connection.
  2. Open SQL Server Management Studio from the Start menu.
  3. Log in to your database as a remote desktop user.
  4. In the folder structure on the left, expand Security.
  5. Right-click the Registrations folder and select New Connection.

I read the article you pointed out, but I didn't see anything I didn't know or tried.

error 18456 error state 11

I agree that it is very strange that the service account under which SQL Server is running cannot access SQL Server. I have not installed SQL Server on any of the four computers, so I cannot tell exactly how the service account was configured. But come on To see if this matters, I used the config to change it to a local service. I have checked if the (previous) service account is unavailable. I used the config manager to restore it to the service account and made sure I still can't get it under this account. The account is not integrated with administrators.

How do I fix Login failed?

Following the steps below should resolve this issue.
  1. Open SQL Server Management Studio.
  2. Right click on the database server and go to Properties.
  3. Select a security option and enable "SQL Server and Windows Authentication Mode".
  4. Enable TCP / IP connection in SQL Configuration Manager.
  5. Restart your SQL server.

Let me take a backup here and say that I did what the article you directed me to and fixed the problem, but even if it worked, I am still unhappy. I still think there is something wrong with this box.

I have explicitly added a service account as an identifier (before reading the article). When I do that, I can go to Management Studio and log in. My concern is that the account has not been explicitly added to any of the accounts. the other three fields and does not appear in the registration list. Maybe I'm just anal, but I feel like there must be something else that I missed when I need to explicitly put one id in this field, but not others. What for Will this be needed for one box but not three others?







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