>>>Hi,
>>>
>>>I've installed SQL Express 2008 R2 on a server and created a named instance: SQLExpress.
>>>
>>>In trying to connect to this server from PCs on the network I get this error during setting up an ODBC connection:
>>>
>>>Connection failed:
>>>SQLState: '01000'
>>>SQL Server Error: 11004
>>>[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]ConnectionOpen (Connect())
>>>Connection failed:
>>>SQLState: '08001'
>>>SQL Server Error: 6
>>>[Microsoft][ODBC SQL Server Driver][TCP/IP Sockets]Specified SQL server not found
>>>
>>>I have:
>>>
>>>1. ensured that ports 1433 and 1434 are open in the firewall on the server
>>>
>>>2. Ensured the SQL Browser service is running
>>>
>>>3. Double checked the name of the server (GFSL01\SQLExpress) by looking in SSMS
>>>
>>>4. Ensured that remote connections are allowed by looking at the Server Properties in SSMS
>>>
>>>What else could I be missing?
>>
>>Hi Frank,
>>Try to make File DSN connection WITH SQL Server Driver (NOT WITH SQL Server Native Client 10.0)
>>Control Panel->Administrative Tools->Data Sources
>
>Vladimir,
>
>that's what's giving me the error message, if I look at the Advanced settings I see DRIVER=(SQL Server) so I assume that's the driver you are meaning.
>
>I also forgot to mention that I've enabled TCP/IP as a protocol for the SQLExpress instance.


Start->Run->cliconfg
See what protocols are enabled for SQL Server ODBC driver
Enable all (w/o Multiprotocol)