Kart, The listener does not register with the instance, the instance registers with the listener. You didn't mention it, but I am assuming you are using 11.2 which means the remote_listener parameter should be set to the SCAN. The local_listener parameter, however, hasn't changed. It should be using either a tnsnames.ora entry or more likely, the full connection descriptor. (DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=10.10.10.10)(PORT=1545)))). Use 'lsnrctl stat' to make sure that the listener is listening on that IP and port. The instance will automatically register with the listener on a regular basis but you can use 'alter system register;' to force a registration to take place. Seth Miller On Thu, Jul 18, 2013 at 2:23 AM, K R <kp0773@xxxxxxxxx> wrote: > All, > in a 3 node RAC . one of the node's listener is not registering the > instance . i try deleing adding listener but still no help. > appreciate any help > > thanks > Kart > > > -- > //www.freelists.org/webpage/oracle-l > > > -- //www.freelists.org/webpage/oracle-l