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error establishing a connection to SQL Server

Posted By:      Posted Date: October 07, 2010    Points: 0   Category :ASP.Net
 

help me out here Experts

I was able to publish a web application with many projects inside it and which connects to oracle database

now, I put it on remorte IIS 2003 server but it gave this error that has to do with aspnetdb file

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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

and then I tried it on my local windows7 IIS local host and I got this error

Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed.

please hurry up, I need to deploy this application as fast as possible

thank

 




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A network-related or instance-specific error occurred while establishing a connection to SQL Server.

  
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I just opened the project. Yesterday everything worked fine. It does not work any link database.
Today I open the project and displays:

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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

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Source Error:

A network-related or instance-specific error occurred while establishing a connection to SQL Server

  

Hi,

I've created a small website with a simple sqlite database using vwd 2010 .net 4. In dev and test envionments everything works fine, however when i promote to my hosting provider i receive the following 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: SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified)

I've been configuring the connection strings (autogenerated from entity framework and attached db) but unable to get it working on the hosting provider, I'm assuming it's related to permissions but not entirely sure how to resolve - here's the web.config as it stands:

<add name

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Server Error in '/' Application.

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I have looked all over and tried every suggestion to resolve this issue but it persists:

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I've tried:

1) Turning on named pipes on the database server and restarting the server.

2) Stopping all firewalls on the server.

3) Making sure that the server is configured to allow remote connections.

My connectionstring is:

Data Source=MYSERVERNAME\mssqlserver;Initial Catalog=NEMO;User ID=sa;Password=password

I have tried using portqryv2 to see whats happening on the UDP port that sql server uses as suggested in another post but gets a syntax error from the utility.

I am baffled by this one and would greatly appreciate some help.

Thanks.


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This was originally posted in the SSIS Forum, but a member of the IS team suggested it be moved here.  "Most recently I got this error (Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) so does this mean that SQL Server is still trying to use named pipes even if I only have TCP/IP enabled in SQL Server Configuration Manager?"

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

  
after lots  of goes and back, I have the same problem but it is related to my Visual studio too. Because I can access to the same database  for new projects but when I use an existing project with a new default page I get the same error.
I am using visual studio 2005 connecting to MSSQL 2008 in server that has an instance of SQLServer express 2005 too
the code for boht new and existing project is bellow

I appricate any help

 

protected void Page_Load(object sender, EventArgs e)

{

 

SqlConnection cn =

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