User launched Spotlight on DB2 from Toad for DB2 without creating of DB catalogs on DB2 client (DB2copy1).
He got error "Unable to connect to <database name>". It does not use Toad for DB2 catalog.
SPOTLIGHT for DB2 v 6.8.2 does not use Toad for DB2 v 5.0.3 catalog.
Apply Toad for DB2 v 5.0.4