Hi, Suggest to follow steps described here http://support.microsoft.com/kb/914277

Hi, I have a SQL Server 2005 client (SSMS) installed in my machine. We have an SQL Server 2005 Express instance installed in another machine. Now, using Surface Area Configuration Tool form my machine (I also have Surface Area Configuration Tool installed with the client) can I configure the services...

Welcome to the SSP Forums Here is the workaround for your problem http://support.microsoft.com/kb/914277

Hi, Also check this link http://support.microsoft.com/kb/914277

Have you checked the SQL errorlog file see if there is any abnormal. Few things comes up such as certificates or encryption if so then what you are using IP address, hostname or FQDN? You can try to see the difference by exec "ping -a servername" inside and outside your building. Such difference...