Connecting to SQL server 2005 from a remote machine

I'm trying to connect to a sql server machine from another machine on the network and I'm getting this error:

"An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"

More information about the machines:

All machines are on the same private netwrok, all in the same workgroup.

Machine1: this is the DB server, Win 2003 server, it has SQL 2005 developer edition, .Net runtime 2.0.

Machine2: trying to connect to machine 1, Win 2003 server, .Net runtime 2.0

On the DB server, TCP/IP is enabled with port 1433, also named pipes are enabled.

I checked the ERRORLOG and it says it's ready for connections and it's listening...Also there are no firewalls between the machines, I also added the sql server service .exe and the sql explorere .exe to the windows firewall exceptions on the DB server (although it's disabled)...

I'm not sure what else to do, I checked all sources online, applied anything related to this issue but not luck. This has wasted 3 hours of my time, this was a task that wouldn't take you a minute in older versions!! , Microsoft thinks it's making our life easier but in fact, I spend more time now on trouble shooting than before...

Let me know if you have a solution..

thanks,

Tamer

Case Closed :) .. turned it to be that the sql server IP address has been changed and the connection string was still pointing to the wrong one... it was confusing because of the misleading error message.

T