Cannot establish a connection to the server - sql-server

I just fixed my computer here and there after I was facing some BSOD's and when I now try to open up SQL Server using Windows Authentication, displays the following message and doesn't login.
TITLE: Connect to Server
Cannot connect to SARIN-PC\SQLEXPRESS.
ADDITIONAL 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 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)
I checked in the Configuration Manager, Named Pipes, Shared Memory and TCP/IP all are enabled. What went wrong now? :-|

Did you check SQL Server Configuration Manager->SQL Service(MSSQL). Is it runnig?
You also can check:
SQL Service(MSSQL)->Properties->Service->Host Name is eqals to "Service Name"
which you must enter when you start your MSSQL Manadgment Studio.
If it don`t help you can read this articlea http://blogs.msdn.com/b/sql_protocols/archive/2007/05/13/sql-network-interfaces-error-26-error-locating-server-instance-specified.aspx

Check if you are typing in the right computer name and instance name. The error basically points to that.

Related

Unable to connect SQL Server to an Excel sheet

I am trying to connect SQL Server to an Excel sheet using get data source. I have two systems: System A has SQL Server installed, and I'm trying to connect to System B using an Excel sheet.
When I provide the details as
Server: 10.100.84.224\DOHVP1C00JIRA01 and Database: jiradb1
Click on "Ok", I get an error
Unable to Connect
Details: "Microsoft SQL: 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 checked all the connection which are configured and looks fine like port numbers and I followed this link too
SQL Network Interfaces, error: 26 - Error Locating Server/Instance Specified
Note: if we want to access System B is VPN secure and we have opened for those too.
Please check if the TCP/IP is enabled in SQL Server Configuration Manager for the server end.
Besides, please make sure that the SQL Server is allowed remote connection.
And you use the instance name to connect the server, please ensure that the SQL Server Browser service is started.
By the way, you can ping the IP address to check if the network is we

login issue with SQL Server

I recently install SQL server 2014 in my PC and I selected SQL authentication rather than Windows authentication after completion of installation when I tried to log in my server it shows this error even my server name and password was correct even though it shows this what to do now!!
following is the error message shows when I try to log in.....
TITLE: Connect to Server
Cannot connect to AADI_SQLSERVER.
ADDITIONAL 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 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) (Microsoft SQL Server, Error: 53)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=53&LinkId=20476
The network path was not found
As the error states "network-related or instance-specific error" its related not being able to find the instance.
This maybe due wrong instance name, Check the spellings of the server that you are connecting to.
You may have installed a named instance like sqlexpress in that case the server name should be {YourServer}\Sqlexpress.
You can get your instance name by going to services, if its MSSQLSERVER you can connect with the machine name else you should provide the correct instance name.
Please refer the screenshot below.
If you are connecting to another machine check the network configuration of the instance by going to sql server configuration manager. If the status is disabled you can connect from outside.
If that also fails better check the firewall settings

SQLLocal DB 2016 Unable to connect

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.

How to resolve issue in getting connected to SQL Azure Database?

I configured the SQLAzure database. I configured the firewall for my IP and when am trying to connect to that database from my local using SQL Server Management studio, getting below error
TITLE: Connect to Server Cannot connect to XXXXX.database.windows.net.
ADDITIONAL 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 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) (Microsoft SQL Server, Error: 53)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft%20SQL%20Server&EvtSrc=MSSQLServer&EvtID=53&LinkId=20476
The network path was not found
How to resolve this issue?
Please also check network protocol when you connect to Azure database via SSMS. It seems you are using named pipes and TCP/IP is excepted.
Hi Bravo are you able to browse the instance via Visual Studio if you have it installed?
Can you also confirm that you are not behind a corp firewall that blocks 1433 outbound?
Really minor thing but the title of the error has a trailing "." which if that is the machine name you are trying to connect to won't work - it may just be appended by the error message.
You can try a few things:
Ensure SQLAzure database name is correct (the error that you posted translates to name doesn't even exist)
Try adding port number at end of the connection
XXXXX.database.windows.net,1433
If the issue still persists, try pinging the SQLAzure from your local machine.

A network-related or instance-specific error occurred while establishing a connection to SQL Server 2014

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

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