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The following errors are returned when trying to make a Direct Connect connection to an ArcSDE geodatabase stored in SQL Server 2005. This error occurs from any ArcSDE client, such as ArcCatalog or ArcIMS Author. ArcCatalog displays the following error:
"Failed to connect to the specified server.
Underlying DBMS error[Microsoft OLE DB Provider for SQL Server: [DBNETLIB][ConnectionOpen(PreLoginHandshake()).]General network error. Check your network documentation.No extended error.]"
ArcIMS Author shows the following error message in the 'Author Message Console', accessible from the Help menu:
"java.io.IOException: DATABASE LEVEL ERROR OCCURRED."
Application server connections to the same database work without any problem.
TCP/IP protocol might not be enabled on the system as a communication protocol between SQL Server Client and Server. To enable this protocol, use the 'SQL Server 2005 Surface Area Configuration' utility to change the setting.
Application server connections to the database continue to function because clients connect to the ArcSDE application server, which then connects to the database. In this scenario, ArcSDE connections are local because the application server is on the same server as the database.