Getting error while connecting to SQL server 2014

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Hello Friends,
When i try to connect to SQL Server, i am getting the below 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) (.Net SqlClient Data Provider)

Kindly help me.

What I have tried:

Creating inbound rule, changing PORT 1433, Changing the firewall settings to allow the new inbound rule

Posted 6-Jun-16 21:47pm

Member 11933161

Updated 6-Jun-16 21:54pm

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OriginalGriff · Answer 1 · 2016-06-06T21:54:00

There isn't really a lot we can do - we don't have any access to your network so we can't see what is going on.
I'd start by establishing a connection outside of your code, so try setting up a connection in VS with the Server Explorer pane:
1) Open Server Explorer.
2) Right click "Data connections" and select "Add connection"
3) In the dialog that follows, select your DataSource, and database, specify the security info, and press the "Test connection" button.
4) When the connection works, press "OK"
5) Highlight your database in the Server Explorer pane, and look at the Properties pane. A working example of the connection string will be shown, which you can copy and paste into your app or config file.
But until you have a working connection somewhere, we're all just whistling in the dark!