create a new localhost session with connection type Microsoft SQL Server (TCP/IP)

I'm new to heidisql

I'd like to create a new localhost session with connection type Microsoft SQL Server (TCP/IP) but I keep getting this error:

SQL Error (10061): Protocol error in the TDS stream The client is unable to establish the connection due to an error during the handshake operation.

Any suggestions? Thanks

Never heard that error message before.

You may retry with the other library SQLOEDB, and ignore the upcoming warning message temporarily.

If I try with SQLOEDB I get this error:

SQL Error (11): [DBNETLIB] [ConnectionOpen (PreLoginHandshake ()).] Generic network error. Check your network documentation Generic network error. Check your network documentation.