Oracle Error Message
ORA-06616: LU6.2 Driver: Attach to LU failed
Reason for the Error
The SQL*Net LU6.2 driver was unable to attach to the LU specified in the connect string, or was unable to attach to the default LU.
Solution
Check that the LU name specified in the connect string, or the default LU name if no LU was specified, is correctly configured and operational.