How to Fix Microsoft SQL Server Error 4014

Summary: If you are an SQL user, then you may have surely faced the Microsoft SQL Server Error 4014. Generally, this error occurs when the SQL Server network interface library cannot establish a connection. It fails to maintain the client-server connection due to issues with the server, network, or configuration settings. Whatever the reason, this error interrupts the functioning and stops the smooth workflow. So, resolve these issues using manual solutions and a DatabaseFileRecovery SQL Database Recovery Tool, as stated in this guide. Download Now Purchase Now

What Causes SQL Server Error 4014?

The major reasons for the occurrence of this error in your SQL Server are:

• Issues in the network due to firewall or TCP/IP interface.
• Unexpected stoppage or closure of the SQL Service.
• Incorrect credentials, permission issues, or connection and query timeouts.
• Misconfigured settings of the SQL Server, such as memory or parallelism.
• Low system resources and bugs in the SQL Server can also cause this error.

So, all these factors make it essential to fix SQL Server fatal error 4014 to avoid losses in the database. Also, it is crucial to prevent any other major error resulting from it that may affect productivity.

Possible Methods to Fix Microsoft SQL Server Error 4014

There are several manual troubleshooting solutions to fix this error. However, there is no guarantee for the free solutions, and this can affect the database too. So, for advanced security and recovery of the database in the worst-case scenario, a professional tool is also suggested. It is highly recommended by experts for SQL databases. Let’s start with the manual workarounds to resolve the SQL error.

Fix SQL Server Error 4014 Manually

The problem is related to Microsoft’s Scalable Networking Pack (SNP) involving three main components:

• TCP/IP Chimney Offload, which helps reduce the processing load on the CPU.
• Receive Side Scaling (RSS), which enables network load from NIC that is to be distributed across multiple multiprocessor computer’s CPU.
• And Network Direct Memory Access (NetDMA), which offloads the memory copy operation.

So, to fix Microsoft SQL Server Error 4014, follow these steps:

1. In the command prompt, run netsh int tcp show global to check server settings.
2. Further, execute the command netsh int tcp set global chimney=disabled to disable the TCP/IP chimney offload.
3. Next, run the command netsh int tcp set global rss=disabled to disable RSS.
4. Afterward, you need to disable the NetDMA, which can only be achieved by modifying the registry. Follow these:

• Type regedit in the Run menu to open Registry Editor.
• Go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\TCPIP\Parameters to locate the registry sub-key.
• Find the EnableTCPA registry entry. If it exists, good. Otherwise, right-click the Parameters sub-key and press New.
• Then, click DWORD Value and replace the new value with EnableTCPA.
• Afterward, double-click it and set the value to 0 to disable NetDMA. Click OK.

1. In the end, reboot the system for the changes to take effect.
2. Later, run the command netsh int tcp show global again to check the changes.

Alternatively, if you still face SQL Server error 4014, then do the following:

• Ensure all SQL Services are running and the network is working properly.
• Further, keep a check on the SQL Server Logs and update it to the latest version.
• Also, restart the server to find interruptions and rebuild the databases.

These methods can help you resolve the issue. But, there is no guarantee that data is secure. Moreover, users must have technical knowledge to go through the procedure. So, it is better to have an alternative in such a scenario.

Professional Solution to Resolve Microsoft SQL Server Error 4014

When manual methods seem impossible or inappropriate, always go for expert help. The DatabaseFileRecovery SQL Database Recovery Tool is an easy to use utility that secures your SQL database from all the errors. It protects the data, restores it, and saves it in a new Database or as SQL Scripts on the system. Along with that, the tool can handle errors like Microsoft SQL Server Error 18456, 8923, etc. Moreover, it works for all SQL versions and Windows OS without any difficulties.

Steps to Recover Data from SQL Server Error 4014

1. Run the SQL Database File Recovery Tool and click Open from the menu.
2. Add the database file and choose the Standard or Advanced recovery mode.
3. Further, set other options and click OK to view the database file contents.
4. Preview the tables and records and press Save SQL Data to restore the data.
5. Afterward, choose Save as Database or Save as SQL Scripts as needed.
6. At last, apply the filters and provide other details and hit OK button.

Also Read: Backup/Restore a Single Table from SQL.

Conclusion

To conclude, the blog stated various solutions to fix Microsoft SQL Server Error 4014. If you are a techie and have time, use the manual methods. However, if you face corruption, inaccessibility, or other problems, try a professional tool. It will recover all the data in minimum time without losses. 

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