Step 1:

In this tutorial I will show how to solve SQL Server a network related or instance-specific error. First open SQL server management studio. Then connect the server if the error occur. This Error given bellow:

Step 2:

Now open the services from the task manager and find the “SQL server(MSSQLSERVER)” and restart the server. Given bellow the example:

Step 3:

Now run the SQL server and connect the server it solve the problem.