It is possible to connect to a remote database server. There are a number of obstacles to obey however:
(a) The server must accept remote connections. Use the "Server Configuration Manager" from the MSSQL 2008 installation to configure this.
(b) The firewall(s) must not block the required ports (usually 1433).
(c) The client must be configured that TCP/IP connections are used.
(d) The server should not use dynamic ports as otherwise the firewall can be easily misconfigured.
I always use the test connection buttons to see whether the connection is correctly set up. You might want to use the server explorer from the VS too to see if the connection can be made.
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