• Sql Network Interface Error 25 Connection

When I initially downloaded SQL Server Express the System tables were visible using SQL Server Management Studio Express. I was able to create a new database and define and populate a couple of small tables. I then attempted to set up an ODBC SQL Natvie Client connection so that I could print the table contents using Crystal Reports. That failed with the following error message:'An error occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default setting SQL Server does not allow remote connections.'

I subsequently uninstalled and reinstalled SQL Server Express. Now, I get the following error message whenever I try to connect to the database using SQL Server Management Studio Express. Additionally, the System tables are no longer visible.

However, I can access my database via the Server Explorer in VS2005.TITLE: Connect to Server-Cannot connect to STAN-DELLSQLEXPRESS.-ADDITIONAL INFORMATION:An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Network Interfaces, error: 28 - Server doesn't support requested protocol) (Microsoft SQL Server, Error: -1)For help, click. Today atleast in 4 different posts i replied for the same issue. In sql server 2005, after installation, you have to configure SQL server for Remote access. Thats what the first issue was and you don't had to uninstall atall. As far as system tables are concerned.

In sql server system tables are not exposed to the user. Its in the form of Catalog view/DM Views/Compatibility views. Read about these terms in BOL. You don't have to worry about that.Follow the KBs /Blogs/Thread mentioned below. You can solve this issue(a) Check the service is started(b) Configure server for remote access(c) Check SQL Browser Service is running(d) Create exception if firewall is enabled(e) Enable TCP/IP protocloRefer:- Check Error Message 7 in this blog.

Its clearly described.Madhu.

I have installed SQL Server 2005 Developer edition. When I open SQL Server Management Studio, and try to connect to the database engine, I enter these credentials:Server name: LT2000MSSQLSERVERLogin: saPassword: my passwordWhen I try to connect I receive the following error:An error has occured while trying to establish a connection to the server.

When connecting to SQL server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections.(provider: sql network interfaces,error:25 - connection string is not valid)(Microsoft SQL Server, Error:87)What can I do? Peter SmithI have installed SQL Server 2005 Developer edition. When I open SQL Server Management Studio, and try to connect to the database engine, I enter these credentials:What can I do?I don't understand what you mean by connecting to the database engine because I have not had the need for that in 8years plus using SQL Server, but your error means you are trying to connect with only named pipes you need to use both named pipes and TCP/IP.Then enable remote connection that is covered by Microsoft below. Hope this helps. Actually the error has nothing to do with pipes.

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Sql Network Interface Error 25 Connection

If you look in the error message you find the message 'error:25 - connection string is not valid', that is the error. If you are sure those are that is your valid credential you should use a connection stringjust like this one: 'Data Source=LT2000MSSQLSERVER;Initial Catalog=Northwind;User ID=sa;Password=mypassword'; Initial catalog is of course the name of your database.

If that doesn't work, then use a data source wizard and enter your credentials, then testthe connection and see if it works. If it doesn't you probably have wrong credentials. You can try also using the Windows Authentication('cause you set your sql server to user mixed authentication mode), in that way your connection string will be: 'Data Source=LT2000MSSQLSERVER;InitialCatalog=Northwind;Integrated Security=true'.Tell us if that works for you.