login failed for user 'sa'. The user is not associated with a trusted SQL Server connection. (Microsoft SQL Server, Error: 18452) in sql 2008

Question

I use windows 7 ultimate. I can login with windows authentication mode but SQL authentication with user sa doesn't work. sa user is enabled. So what do I do?

Solution 1

Go to Start > Programs > Microsoft SQL Server > Enterprise Manager

Right-click the SQL Server instance name > Select Properties from the context menu > Select Security node in left navigation bar

Under Authentication section, select SQL Server and Windows Authentication

Note: The server must be stopped and re-started before this will take effect

Error 18452 (not associated with a trusted sql server connection)

Solution 2

1. Click on Start menu > Programs > Microsoft Sql Server > Configuration Tools

2. Select Sql Server Surface Area Configuration.

3. Now click on Surface Area configuration for services and connections

4. On the left pane of pop up window click on Remote Connections and Select Local and Remote connections radio button.

5. Select Using both TCP/IP and named pipes radio button.

6. click on apply and ok.

Now when try to connect to sql server using sql username and password u'll get the error mentioned below

Cannot connect to SQLEXPRESS.

ADDITIONAL INFORMATION:

Login failed for user 'username'. The user is not associated with a trusted SQL Server connection. (Microsoft SQL Server, Error: 18452) ation To fix this error follow steps mentioned below

1. connect to sql server using window authentication.

2. Now right click on your server name at the top in left pane and select properties.

3. Click on security and select sql server and windows authentication mode radio button.

4. Click on OK.

5. restart sql server servive by right clicking on server name and select restart.

Now your problem should be fixed and u'll be able to connect using sql server username and password.

Have fun. Ateev Gupta

Solution 3

Login with windows authentication mode and fist of all make sure that the sa authentication is enabled in the server, I am using SQL Server Management Studio, so I will show you how to do this there.

Right click on the server and click on Properties.

Now go to the Security section and select the option SQL Server and Windows Authentication mode

Once that is done, click OK. And then enable the sa login.

Go to your server, click on Security and then Logins, right click on sa and then click on Properties.

Now go tot Status and then select Enabled under Login. Then, click OK.

Now we can restart the SQLExpress, or the SQL you are using. Go to Services and Select the SQL Server and then click on Restart. Now open the SQL Server Management Studio and you should be able to login as sa user.

Solution 4

1. First make sure sa is enabled
2. Change the authontication mode to mixed mode (Window and SQL authentication)
3. Stop your SQL Server
4. Restart your SQL Server

Solution 5

1. Go to services.msc from run prompt.
2. Restart the services of SQL server(MSSQLSERVER)
3. Restart the services of SQL server(SQLEXPRESS)

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