unable to connect a running sql server suddenly

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SQL-Server-2005

Hi,

I cannot connect to [servername]

Information:
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 the instance nameis correct and that sql server is configured to allow remote connections (provider named pipes provider , error 40)

What's the solution?

Posted 6-Jan-11 20:16pm

161911

Updated 6-Jan-11 21:34pm

Dalek Dave

v2

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Comments

jerrykid 7-Jan-11 2:17am

Please provide more about codes for connection to DB

zommarin 7-Jan-11 2:20am

Please include your connection string. Also if using TCP/IP connections you may try to do a "ping" to the server address.

Dalek Dave 7-Jan-11 3:34am

Edited for Grammar and Readability.

2 solutions

Solution 2

That's problem coming many times while connection to sql.

HERE[^] is a very good solution for concentrating for that problem only.

Posted 6-Jan-11 20:22pm

Hiren solanki

Comments

Dalek Dave 7-Jan-11 3:35am

Good Links.

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Sandeep Mewara · Accepted Answer · 2011-01-06T20:21:00

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.