Hi, We have a 2 node RAC using ASM on Linux AS4 and is working fine except that whenever I am try to connect to ASM instance from client machine or Grid control I get the following error: ORA-12528: TNS:Listener: all appropriate instances are blocking new connections Do I need to configure something or we can only connect to ASM instance as "sysdba" user from server machine only? Thanks --Harvinder -- //www.freelists.org/webpage/oracle-l