How to fix “Microsoft SQL Server Error 233- Login failed for user”?

[ashutoshjha1101]

Users occasionally face "SQL Server Error 233, "SQL Server Login Failed Error 233," or "Pipe Error 233" when accessing an MSSQL Database. This general connection issue requires testing various solutions, as the error message can vary.

To resolve SQL Server Login Failed Error 233, you can use the MS SQL Database Recovery Tool. With its user-friendly interface, even non-technical users can easily install and run the software to fix login issues. It is compatible with Windows 10, 8, 7, XP, Vista, and 2000.

Also, there are a few manual methods to resolve SQL Server error-233 by Enabling SQL server and Windows authentication, Check the default database, Shared Memory, TCP/IP there are a few more to know about more process and to understand all these process in detail you can refer to: https://www.databasefilerecovery.com/blo...error-233/

[sanchittandon]

To manually convert MBOX to PST, first, import the MBOX file into Mozilla Thunderbird using the ImportExportTools NG add-on. Next, configure an IMAP email account (such as Gmail, Yahoo, or Outlook.com) in Thunderbird and sync MBOX emails by moving them to the IMAP folder. Finally, add the same IMAP account in Microsoft Outlook, then export the emails as a PST file via File > Import/Export. The main drawback of this method is that it is time-consuming, requires IMAP configuration, and may lead to data loss if not done properly. To avoid these complexities, you can use DRS MBOX to PST Converter, a professional tool that converts MBOX files to PST quickly without requiring Thunderbird or IMAP configuration.

[arunkumar]

In my experience, SQL Server Error 233 usually pops up because of login or network issues—like wrong authentication settings or disabled protocols.

You can try with below steps:
- Make sure SQL Server is using Mixed Mode Authentication.
- Check that TCP/IP is enabled in SQL Server Configuration Manager.
- Double-check your username and password.
- Make sure port 1433 is open in your firewall.
- Try restarting the SQL Server service.

But if you’ve tried all that and still can’t connect—especially if the database won’t attach or something doesn’t seem right—it could mean the database is corrupt. In that case, you can try using a tool like Stellar Repair for MS SQL to get the data back.