SQL error 233: There is no process on the other end of the pipe.

5 Ways to Fix Microsoft SQL Server Error 233

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Overview of SQL Server Error 233

SQL Server Error 233 signifies "No process is on the other end of the pipe." The detailed error message reads as follows:

A connection was successfully established with the server, but then an error occurred during the login process. (Provider: Shared Memory Provider, error: 0 - There is no process on the other end of the pipe.) (Microsoft SQL Server, Error: 233)

The reason for SQL Server error code 233 is typically related to a connectivity issue between the client and the SQL Server. This error indicates that the operating system on the server has rejected the connection attempt, possibly due to the maximum number of allowed concurrent connections being exceeded, a firewall blocking the connection, or an incorrect configuration of the SQL Server instance. It can also occur if the client machine is not properly configured to connect to the SQL Server. To resolve this issue, you should check the server's connection settings, firewall rules, and ensure that the necessary services are running and the required protocols are enabled.

Error 233, "No process on the other end of the pipe," is usually caused by one of two things:

- The client attempts to connect using named pipes only, but the named pipe protocol is not enabled on the server. - The client attempts to connect with any available protocol, but named pipes appears before TCP in the client protocol order.

With the above two reasons, you can easily fix error 233.

Fix 1: Enable TCP/IP to Resolve SQL Server Error 233

If the client is attempting to connect with named pipes, and the server is not configured to allow remote connections with named pipes, do the following:

Step 1: Open Microsoft SQL Server.

Step 2: Open the Configuration Tools, and then open SQL Server Network Configuration in SQL Server Configuration Manager.

Step 3: Select the "TCP/IP" option and enable remote connections using named pipes.

If the client protocol sequence attempts to connect with the named pipe protocol before trying TCP, and named pipes are not enabled on the server, you can resolve the problem by doing the following:

On the client computer, use SQL Server Configuration Manager to move the TCP protocol above Named Pipes in the protocol order list.

Fix 2: Enable shared memory

If the shared memory protocol is disabled, SQL Server login might fail with error 233.

Step 1: Open MS SQL Server on your system.

Step 2: Choose "Configuration Tools" and then "SQL Server Configuration Manager."

Step 3: Right-click on "Shared Memory" and select "Enable."

Fix 3: Enable the Named Pipes protocol to resolve SQL Error 233

SQL Server Error 233 occurs when the SQL Server client is unable to connect to the server and is not configured to accept remote connections. To resolve this issue, in addition to enabling Shared Memory and TCP/IP, we need to activate the Named Pipes protocol using the SQL Server Configuration Manager tool.

Step 1: Run MS SQL Server.

Step 2: Open SQL Server Configuration Manager, and then expand SQL Server Network Configuration.

Step 3. Bring up the Properties window for the Named Pipe protocol, and click Enable.

Step 4: Click Apply and OK to apply this change to SQL Server.

You need to restart the SQL Server service through SQL Server Configuration Manager. Once the server is back online, try reconnecting to your SQL Server instance. This should resolve the error 233, and you should be able to establish a successful database connection.

Fix 4: Check for Remote Connections

If you continue to receive the Microsoft SQL Server error 233, indicating that there is no process on the other end of the pipe after you perform this workaround, you must enable remote connections for SQL Server.

Step 1: On the database server, connect to the SQL Server instance using SSMS locally.

Step 2: Right-click the server instance name, and choose Properties.

Step 3: In the left-hand panel, select “Connections,” and then check the box for “Allow remote connections to this server.”

Fix 5: Repair Corrupted MS SQL Database to Resolve SQL Error 233

If the issue persists, the problem might lie with the database itself. MS SQL Server can be subject to various threats and errors (823/824/825). Repairing the database might come in handy. The MS SQL Recovery Tool is a highly professional and reliable SQL repair solution. It can recover database components like tables, triggers, indexes, keys, rules, and stored procedures, along with recovering deleted records from an SQL database. It supports MS SQL Server 2016, 2014, 2012, 2008, and earlier versions. Follow the detailed steps below to fix your database error.

Step 1: Select the corrupted database to be restored

• Launch the MS SQL Recovery tool. • Select the corrupt database file by clicking on “Browse” (two dots) or “Search”. • After selecting the file, click on the “Repair” button to start the analyzing process.

Caution: You must stop the SQL Server service before you use this utility.

Step 2: Repairing the corrupted database

• The software displays all recoverable items in a tree structure. These items are listed in the left pane.
• Select the components that you want to restore. In the window, click the Export button.

Select Database Objects

Step 3: Export to Database or Script

• If you chose to Export to Database, enter the required information and select the target database.

A window will appear asking for the credentials to connect to the server and the location to save the recovery project. Click “OK” to start the repair process.

Note: The SQL Server service must be restarted before you click OK.

Though an SQL repair tool should be able to fix the error successfully, in the rare case that it doesn't, you should contact Microsoft Customer Support for professional assistance.

Conclusions

In this article, we have elaborately discussed SQL Server Error 233, No process is on the other end of the pipe, including its explanation, reasons, and all feasible solutions. If you encounter this error, do not panic. You can use any of the above methods, such as enabling Shared Memory, TCP/IP, and Named Pipes protocols to let SQL Server clients connect to the server or utilize a reliable SQL recovery tool to restore (.mdf and .ndf) files, fix database log files, or recover corrupted objects.

We hope this tutorial helps you resolve the SQL login failed error 233.