how to solve this problem: provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server

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I have developed an on line test application and successfully hosted it on line. I have also purchased mssql database on that provider. But when i am trying to run my project from my machine it is giving me this error.

A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)

the database connection string i have used is given below:

this.sConnectionString = "Data Source=112.56.175.194;Initial Catalog=MockTestDatabase;integrated security=true;User ID=xyz;Password=abc";

Posted 4-Mar-12 17:47pm

Qureshali

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sahabiswarup 4-Mar-12 23:52pm

i have also found this type of error; and after a long research i have found that these above error shows when SQL server is not opening with the given connection properties. so please check your SQL connection properties

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psgviscom · Answer 1 · 2012-03-04T17:50:00

Solution 1

Refer this link.
http://blog.sqlauthority.com/2009/05/21/sql-server-fix-error-provider-named-pipes-provider-error-40-could-not-open-a-connection-to-sql-server-microsoft-sql-server-error/[^]
Hope this helps you.

Posted 4-Mar-12 17:50pm

psgviscom

thatraja · Answer 2 · 2012-03-04T18:26:00

Solution 2

Check this answer
Troubleshoot SQL connectivity issues[^]

Posted 4-Mar-12 18:26pm

thatraja

uspatel · Answer 3 · 2012-03-04T18:56:00

Solution 4

Check my answer

Posted 4-Mar-12 18:56pm

uspatel

satalaj · Answer 4 · 2012-03-04T20:17:00

Solution 5

Hi,
you may don't have direct access from your machine to hosted MS SQL server provider. You can check connectivity by executing below command.
telent IP_addressof_MS_SQL_Server Port_Number
e.g. Telnet 123.10.22.11 1433.

Defaut port for MS SQL server is 1433

Posted 4-Mar-12 20:17pm

satalaj