Need to transfer SQL Agent Jobs to a new DB server

I have a requirement to move the SQL Agent Jobs in SQL Server to a new SQL Server. The existing SQL Server is of the version SQL Server 2014 installed. I have installed the target or the new SQL Server with version SQL Server 2014, in order to avoid any compatibility issues. When I tried to login the new SQL Server using the credentials , I am getting the error message "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible " I have ensured that SQL Services are running. What might be the problem here?

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