In today's arena, SQL Server is the most popular database management system, which is provided by Microsoft. But, sometimes users might face numerous errors when they are trying to connect with the server. Out of them, one such error is "SQL Server Login Failed Error 233" occurs when users try to log in to SQL server authentication mode. Therefore, in the upcoming section, we are going to discuss some of the possible ways through which users can fix SQL sa login error 233 in a detailed manner.
SQL Server Login Failed Error 233 - Resolve it Manually
Users can fix this issue while authenticating the SQL Server through these common fixes. There are different methods, which helps the user to resolve SQL Server error 233 by checking and enabling the SQL Server Configuration Manager settings as mentioned below:
1. TCP/IP Protocols
There are multiple SQL Servers, which are associated across the network. After that, all communication is done by using the TCP/IP protocol. By default, there is a port for SQL Server Installation, i.e. 1433. This port will be changed if needed through the SQL Configuration Manager (SSCM). For connecting SQL Server, TCP/IP protocol should be enabled. Although, if it is disabled, then you should follow the steps listed below:
- Open Microsoft SQL Server in your local system
- Navigate to configuration tools, and open SSCM (SQL Server Configuration Manager) in your computer. Then, go to SQL Server Network Configuration
- After that, select an option TCP/IP and enable it by right-clicking
Once the procedure is complete, restart Microsoft SQL Server for the changes that take place.
2. Shared Memory Protocol
The Shared Memory Protocol can be used for connecting the SQL Server, which is running on same system. It is not really helpful for several database activities. Sometimes, users may face the authentication error, when you ensure Shared Memory protocol is disabled. It could be enabled with these possible steps as mentioned below:
- Go to Start icon and then, choose All Programs
- Select MS SQL Server>> Configuration Tools>> SQL Server Configuration Manager (SSCM)
- Now, you can opt for SQL Server Network Configuration.
- Eventually, right-click on Shared Memory and then, choose Enable option
3. Named Pipes Protocol
Named Pipes protocol is established for a local area network. Within it, a part of the memory is used by single procedure to pass information to another process. Any other way will be on the same system or on networked system. User may face issues because Named Pipe protocol is disabled, so to enable it users must follow the same procedure as described above by opening SQL Server Configuration Manager (SSCM)>> SQL Server Network Configuration>> Named Pipes Protocol>> Enable.
4. Virtual Interface Adapter
Virtual Interface Adapter (VIA) that works with VIA hardware. Even the users might face an issue when VIA is not enabled in the computer system. Thus, to remove this issue, you should enable VIA option from the SQL Server Network configuration.
5. View Port in Firewall
Windows Firewall acts as a wall in between server and desktop, to protect from malware attacks. Even though, different ports and services are refrained from firewall by default. In fact, the SQL Server port cannot see in firewall. Microsoft SQL Server ports are running on your system, are now added to exception, and a firewall filter all traffic from those kinds of ports. By default, SQL Server is running on 1433 port, but if the default port is changed, then a new port is added to the exception. It would be done following the step:
- First of all, open the Control Panel on your desktop
- Then, choose Windows Firewall and click the Change Settings
- Hit on Exceptions, and then choose Add Port
- Now, a window will appear, and fill the port number, and then press Ok button.
- In the last step, enable the MS SQL.
Summing Up
SQL Server is used by numerous users across the globe to manage and store their entire data. But, when users try to login to SQL Server Authentication mode, they may encounter an error code 233. Therefore, in the above section, we have discussed some possible manual ways to fix SQL Server login failed error 233. Else, users can take help of an alternate option ie sqlbrowser.exe. Run it on the drive where SQL Server is installed, it is just another way to resolve SQL Server error 233.
EmoticonEmoticon