SQL Server ArcSDE Geodatabase connection error

I'm unable to use an Esri Geodatabase (ArcSDE Geodb) reader to connect to a SQL Server SDE database. The error I receive is:

 

 

Could not open the Enterprise Geodatabase. The error number from ArcObjects is: '-2147215997'. The error message from ArcObjects is: {Version not found ["STATE\\CW0157".sde:DEFAULT]}

 

Please ensure the connection parameters are correct (server=`myhost', instance=`sde:sqlserver:myhost\\myinstance', user=`STATE\\cw0157', password=`***', database=`NHD', version=`sde:DEFAULT')

 

 

I can successfully connect with these parameters in ArcGIS Desktop and can even use the Microsoft SQL Server Spatial Reader to connect (but connecting this way isn't ideal because of other issues).

 

 

Any idea if this is an FME issue or SQL Server issue?

 

 

Thanks,

 

Michael