Communicate with SQL Server 2008 R2 through Hyper-V

I have an SQL server configured with a Server in Hyper-V and I am trying to access the database through the Host computer. When I ping the SQL server (static IP) they communicate and vice versa. Then through the SQL configuration manager, I can access the database from SQL server, but not from the host computer (gives me an error 40 and error 5).

I've configured the TCP/IP of the SQL configuration manager to match the SQL server's IP address. I've set the port number to 1433. Is there anything else I've missed?