I am having an odd issue with an SQL connection from Server 2003 R2 to SQL 2008 R2 database instance. The connection works, sometimes, but not others. In doing some testing, I have found that a manually created ODBC connection also works, sometimes. The error from the App logs:
#50070: Unable to connect to the database SharePointContent on Server\Instance. Check the database connection information and make sure that the database server is running.
The thing is that when creating the ODBC connection, and selecting the server, the only instance available from the drop down is the default instance from the SQL Server. When the connection works properly, I can see the default instance as well as the other installed instance. An ODBC connection can be made to any SQL server instance that appears in the drop down box. I have checked the SQL...