I'm currently working on a .NET Core project. When I run the application on my local machine (Windows) I can connect to a SQL Server database using my windows credentials.
I am attempting to shift into using a devcontainer within Visual Studio Code, but when I run the same application in the container (Linux) I get an error:
An exception of type 'Microsoft.Data.SqlClient.SqlException' occurred
in Microsoft.Data.SqlClient.dll but was not handled in user code:
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: TCP
Provider, error: 35 - An internal exception was caught)
I'm not sure where to go from here. What did I miss?
Related
I'm using Entity Framework core and after adding migrations, while updating database I got this error.
Error while updating database:
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: 52 - Unable to locate a Local Database Runtime installation. Verify that SQL Server Express is properly installed and that the Local Database Runtime feature is enabled.)
I am trying to build a project data base SQL in my web application project (visual studio) I tried to off the firewall and I got this:
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: 50 - Local Database Runtime error occurred. Cannot create an automatic instance. See the Windows Application event log for error details.
If you are using SQL Server, then do the following:
Search for "Services" in Cortona
Open the "Services" app
Scroll down to "SQL Server(MSSQLSEERVER)"
Now go to its properties and start the service
Also, make sure you are using the correct connection string.
I am having issues connected with SQL 2016 MSSQLLocalDb from my application. The system is a Server 2012 and I have just deployed my web application to it. I have installed SQLLocaldb 2016.
Running
sqllocaldb info
gave this response: The automatic instance MSSQLLocalDB was not created.
So I created the instance with the name MSSQLLocalDB.
But when I run the application I get this error:
Using:
Data Source=(localdb)\MSSQLLocalDB
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: 50 - Local
Database Runtime error occurred. Cannot create an automatic instance. See the
Windows Application event log for error details.
)
Changing Data source to named pipe gives this error:
Data Source=np:\.\pipe\LOCALDB#7A55F963\tsql\query
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)
Hear is a screen shot of SQL Server Management Studio (un-able to connect as well)
Can someone please help?
I can't open configuration manager either, when I try I get this error.
Try browse: Server name -> Brose for more -> Database Engine.
The error occurs when I create a fresh new ASP.NET MVC web application project. After running it, clicking on Register, filling in my e-mail and password and clicking the Register button - bam exception:
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: 50 - Local Database Runtime error occurred. The specified LocalDB instance does not exist.
)
Seems like there's some problem creating the database. Weird thing is, this doesn't work on my laptop, but it does on my desktop computer. Ideas?
This error was returned when I tried to connect with server.
Error description is:
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) (Microsoft SQL Server, Error: -1)
First you need to check whether SQL SERVER service is running in your system or not .For checking follows below steps in Windows.
Step 1 : Type "window" button + R ,This will open Run prompt.
Step 2: Type "services.msc" in Run prompt and hit the enter.
Step 3: Find SQL SERVER service from there.
Step 4.Start this service.
Following these steps, I have resolved this problem in my machine.
Thanks
Check your SQL Server Service is Running or not
if the server is in remote location check port 1433 is not blocked by the firewall.
if this is not the default instance, Check SQL Server Browser is running or not
Check the network connection on client PC, and verify the connection to the server using PING or TELNET
Check whether TCP/IP and Named Pipes are enabled or not.
for more details Why am I getting "Cannot Connect to Server - A network-related or instance-specific error"?
To solve 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 Go to Sql Server Configuration Manager>>Sql Server Services Sql Server>>Right click on the Sql Server(MSSQLSERVER) and Start the Process.As show belowenter image description here
If you are trying to connect to your Sql Server running on MacOS via Docker, then make sure that Sql Docker container is running and then you will be able to connect to your Sql Server using Azure Data Studio as shown in attached image Sql Container inside Docker