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When your computer system is running Microsoft SQL server and that server is not contacted then you may often receive one of the following error messages on the monitor screen:

SQL Server is unavailable or does not exist
The specified SQL Server is not found
SQL Server does not exist or access denied

Above these error message is very problematic when it occurs on the system screen, actually, these error messages is a generic Microsoft Data Access Components (MDAC) message. So, you essential to repair this critical error message as quickly as possible from your system otherwise you may face additional more system problems or operating system issues like system crashes, freezes, much other error message occurs etc.

  • The most common reason behind this error is installing incompatible or outdated driver, missing system files, corrupted registry file or damaged pc by viruses. Advanced System Repair Tool is the only solution for all the system errors. By installing this tool you will be able to remove above windows error.
    3 Steps to Fix this Error

    Step 1. Download Advance System Repair Tool [File Size: 15.7 MB]
    Step 2. SCAN your Windows PC
    Step 3. Click Fix button to Repair Error

Main reasons behind the error message “SQL Server does not exist or access denied”?

Generally, this error message happens on the system because of many reasons. Like if the following circumstances are true:

  1. If your system is not connecting from the client computers that is running SQL server, there might be a server side issue.
  2. A router or firewall is not configured properly onto your system or has been configured to block UPD port 1434.
  3. The login process to SQL server failed on your computer system.
  4. The SQL server is invalid current connection information or changed SQL server database name.
  5. If your system is authentication is permitted then you cannot use SQL server authentication.


This driver error message “SQL Server does not exist or access denied” is occurred when you are using IBM rational ClearQuest with Microsoft SQL server database. Therefore you required to check the database are configured to enable these protocols on your system:

Named Pipes

After the configured to enable above these protocols you have still facing error message then you may also try these steps: You should login to the ClearQuest Maintenance Tool and then you can choose the menu option Schema Repository > Update. After that change the server name to reflect the new connection information and open ClearQuest Designer. Now, choose the menu option Databases and go to Update User Database Properties. Lastly, change the server name to reflect the new connection information for all affected user databases. Hope these steps work well on your computer for easily fixing of the driver error message “SQL Server does not exist or access denied”. You can also apply third party repair tool for the better result of fixing of this driver error message.

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Fix Error message “SQL Server does not exist or access denied” – How to fix it?

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