still the same error, even with the suggested statement. thanks all the same.
yes, it is the cascaded standby
yes I can sqlplus sys@prodsbpsy as sysdba from primary
ok. so by +"unsupported"+ it means that the broker can be active on the rest of the dbs, but the cascaded SB can't?
ok. seems strange that it can be active (dg_broker_start=true) and can't register the db.
thank you very much for all your help.