Was able to connect to my SQL Server 2012 database using localhost with no problem storing it in the App_Data folder. My connection string was...
Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\bookingsandpreorders.mdf;Integrated Security=True
However when I hosted my site on another/remote server I got the following error:
Server Error in '/' Application.
The system cannot find the file specified
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ComponentModel.Win32Exception: The system cannot find the file specified
I thought it may be the connection string after looking at connection strings.com so I tried...
Server=.\SQLExpress;AttachDbFilename=|DataDirectory|\bookingsandpreorders.mdf;Database=bookingsandpreorders.mdf;
However now I just get another error...
Server Error in '/' Application.
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 watched and read a seemingly endless amount about this error mainly involving configuring firewall, tcp port... all of which have made no difference.
I think I've made a rookie error as I've not got much experience with SQL Server Express. any suggestions?
Related
I'm not very familiar with ASP.NET. How comes my database is not working in my project? what am I missing exactly?
ASP.NET in Visual Studio
The website works when I run the project but once I interact with the database it shows me this error:
"Something went wrong! Contact your devloper
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 have inherited another SQL database (Version 15.0.4083.2) and have noted some problems with the SQL Agent. Specifically the Agent is not logging any jobs (as I just discovered trying to check logs to debug an issue). I am seeing the following errors in the agent logs:
[298] SQLServer Error: 53, Named Pipes Provider: Could not open a connection to SQL Server [53]. [SQLSTATE 08001]
[165] ODBC Error: 0, Login timeout expired [SQLSTATE HYT00]
[298] SQLServer Error: 53, A network-related or instance-specific error has occurred while establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and if SQL Server is configured to allow remote connections. For more information see SQL Server Books Online. [SQLSTATE 08001]
[382] Logon to server 'NotMyClient' failed (ConnLogJobHistory)
(Server name substituted)
This is saying to me that the agent is trying to attach to an incorrect servername/instance. I have then checked the agent properties, i.e. right click on agent, and under Connection it also lists 'NotMyClient'
However when I click on View connection properties the correct IP and computer name.
I have looked at several options for correcting this, but the majoity of answers seem to basically consist of wiping the database, not an option in this case. Also seen a suggestion that the instance name is incorrect, but can see no way of changing the instance name on the server agent.
Any suggestions are greatly appreciated.
Was going about with our usual deployment of code (ASP.NET MVC solution) to Azure to a test instance as an App service. The solution works on local machine, but started throwing this exception in Azure.
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)"
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
* SQLExpress database file auto-creation error: *
Unfortunately this seems to be happening even for other environments now. I haven't changed anything there except redeploying. This has nothing to do with connectionString, have triple checked it on the server itself. Basically the solution as it is works, and have been working for all this while, but since last week all new deployments are failing with this error. Even re-deploying the old code seems to fail. I am afraid to try it on any new environments.
No recent changes were made to web.config, all that was updated was some UI components. In any case, even the older code that is running on other environments are failing. Any ideas on why this could be happening?
SQLExpress only exists within Visual Studio. On something like Azure, you need a connection string that points to a real instance of a SQL Server database.
I hope someone can help me with this. I have differente projects (websites) in Visual Studio 2010. Today when I try to expand one of the databases in the data connections of the server explorer, I get a window with 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: SQL
Network Interfaces, error: 26 - Error Locating Server/Instance
Specified) Description: An unhandled exception occurred during the
execution of the current web request. Please review the stack trace
for more information about the error and where it originated in the
code.
Exception Details: System.Data.SqlClient.SqlException: 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)
Source Error:
An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below.
The situation occurs in ALL my projects. I suppose this happens because I installed Kaspersky 2012 yesterday. Please I need help.
May be installing Kaspersky stopped SQL Server service.
Type services.msc in run dialog box to open services panel .
Make sure SQL Server service has status as Started .
If not , right click on SQL Server and select start.
Of course this is if you are using Windows .
I think the problem is with your firewall. Here is something you can do to remove this error:
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/
I have a service that talks to local instance of SQL Server. I am getting an error
System.Data.SqlClient.SqlException:
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)
This error happens intermittently. Since this is part of my continuous integration process its painful as I have to carry out whole build process again.
I would like to make this clear that I am not getting the issue every time its random in nature.
Please help me with this.
Have you tried toggling the various connection interfaces via the SQL Server Confoguration tool? I suspect you may be connecting via TCP/IP, which could be the subject of network issues elsewhere. Because you're local to the server, you could disable that interface and force the use of Shared Memory, which should help you troubleshoot the problem.
For more information on the connection types, see http://msdn.microsoft.com/en-us/library/ms187892.aspx