I have just installed SQL Server 2012 and I cannot connect to the new instance using any method.
The instance is MSSQLServer
I have attempted \MSSQLSERVER, .\MSSQLSERVER, localhost\MSSQLSERVER and 127.0.0.1\MSSQLSERVER using both windows authentication and the sa account.
I set the SA account's password when installing SQL.
I am at a complete loss as to how I should proceed. Can anyone advise?
I should mention, I am getting the error codes SQL Network Interface, error : 25 - Connection string not valid and Microsoft SQL Server, error: 87
I also opened up port 1433 on my firewall in both directions, though i am not trying to do this remotely.