SQLserver connection error

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I got an error when trying to use a sample using NOrthwind.

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)

Any idea how to resolve this problem?

Posted 31-May-11 20:01pm

joseph k

Updated 31-May-11 20:06pm

Toniyo Jackson

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_Damian S_ · Accepted Answer · 2011-05-31T20:02:00

Solution 1

Start by posting the connection string you are using... The error message says it all really - you likely haven't used the correct instance name for your SQL Server.

Posted 31-May-11 20:02pm

_Damian S_

Abhinav S · Accepted Answer · 2011-05-31T20:13:00

Solution 2

Make sure you have proper access to the database server and that your user name and password are correct.
Ensure the server path is correct as well.

Posted 31-May-11 20:13pm

Abhinav S

joseph k · Accepted Answer · 2011-05-31T20:25:00

Solution 3

I think i have Not done the following!

This sample requires the Northwind sample database. For more information, see How to: Install and Troubleshoot Database Components for Samples.

I need a tutorial for this...

Posted 31-May-11 20:25pm

joseph k

Sandeep Mewara · Accepted Answer · 2011-06-01T05:07:00

It might be surface area configuration error or sql service configuration issue. Have a look at this thread for potential reasons and resolutions: Resolving A network-related or instance-specific error occurred while establishing a connection to SQL Server[^]

If needed, See steps for setting up Surface area configuration here..

If this does not resolve your issue, have a look at these thread:
http://forums.asp.net/t/1334649.aspx[^]
SQL SERVER FIX ERROR (provider: Named Pipes [^]
Quite few possible reasons and resolutions are proposed here too.

thatraja · Accepted Answer · 2011-06-01T17:38:00

Here you go, check these bunch

Steps to troubleshoot SQL connectivity issues[^]

SQL Server 2005 Connectivity Issue Troubleshoot - Part I[^]

Troubleshoot Connectivity Issue in SQL Server 2005 - Part II[^]

Troubleshoot Connectivity Issue in SQL Server 2005 - Part III[^]

BTW I gave you this bunch also for future errors.

prem shanker verma · Accepted Answer · 2011-05-31T21:41:00

Solution 4

I think you are connection to a not accessible sql server.

Posted 31-May-11 21:41pm

prem shanker verma