While I'm connecting visual studio 2010 to sql sever 2008, I'm getting an 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)
You are able to connect to your sql server through SSMS ?
If yes then it might be issue with your connection string and else it seems to be issue with credentials or network availability.
More details will be needed in that case.
You can get help in generating connection strings using ".udl" files.
Related
I'm trying to use POCO to connect to my database.
Whenever I try to connect, I get this error:
Failed to load provider "System.Data.SqlClient".
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)
NOTE: it's a local database, and remote access is enabled, TCP/IP is enabled, and the SQL Server service is running.
I'm using .NET Core 7
Can anyone tell me how to solve this?
Thank you all
I get this error:
Microsoft.Data.SqlClient.SqlException (0x80131904): 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: SNI_PN11, error: 56 - Unable to load the SQLUserInstance.dll from the location specified in the registry. Verify that the Local Database Runtime feature of SQL Server Express is properly installed.)
I verified that SQLUserInstance for SQL Server 2016 Express and 2019 are signed with Microsoft Publisher certificate (1.3.6.1.4.311.76.8.1)
I saw all threads regarding this query in stack overflow. But I Can't find any solution
In the morning when I was trying one project on Visual studio 2010 it was working perfectly fine and now after restart while running Visual studio project I get this error and even my SQL Server 2012 is not connecting what must be the problem ?
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 found Solution to this problem . i'm Instance was proper but TCP/IP was disabled
Go to SQL server configuration tool and open sql server configuration manager . Click on the instance you want to change . Click on protocols and then enable TCP/IP . IT works fine now :)
Anyone have an idea how to solve this problem?
A network-related or instance-specific error occured while establishing a connection to SQL Server. The server was not found or was not accessible.
Verify taht the instance name is correct and that SQL Server is configured to allow remote connection. (provider: SQL Network Interfaces, error: 26 - Error locating Server/Instance specified)
Thanks in advance!
Make sure the instance of the server is started. Do this from Start Menu-> Microsoft SQL Server... ->Configuration Tools->SQL Server Configuration Manager->SQL Server Services
If it is not on your local machine, i.e. on a remote server, then your account needs a login on the SQL Server that is granted access to the DB you are trying to connect to.
Usually the local server instance by default is installed with access for yourself. But it doesn't hurt to check.
Also if it is remote, can others connect successfully? If not, then you may also need remote connections enabled on SQL Server.
Making sure you have the name of the instance correct is important. Slashes should be back slashes, not forward slashes. What are you using for the instance name?
I have Problem when I run my web project
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)**
Then I found in SQL Server Configuration Manager that SQL Server Express stopped
When I'm trying to run SQL Server Express, an error appears
Error :
the request failed or the service did not respond in timely fashion.
Consult the event log or other applicable error logs for details
When I open services.msc to start SQL Server (SQLEXPRESS instance) then this error happen
Error:
Window could not start the sql server (SQLEXPRESS) on local Computer.
For more information , review the System Evemt Log. If this is a non
-Microsoft service,contact the service vendor, and refer to service-specific error code 3417
Any solution to solve my problem ???