can't register instance to remote node in 2 nodes RAC

Hi All,

We have 2 nodes RAC (11.2.0.4), and instance can register to local listener and scan-listener, but can't register to remote listener:

on node 1:(same as node 2)

SQL> show parameter local_listener

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

local_listener                       string       (ADDRESS=(PROTOCOL=TCP)(HOST=

                                                 xxx.yyy.zzz.51)(PORT=1521))

SQL> show parameter remote_listener

NAME                                 TYPE        VALUE

------------------------------------ ----------- ------------------------------

remote_listener                      string      LISTENERS_AMR01LDR, amrxxx-sc

                                                 an.loyalty.com

lba-szn-0001:[AMR01LOD1]$ lsnrctl status

LSNRCTL for Solaris: Version 11.2.0.4.0 - Production on 08-APR-2016 16:27:51

Copyright (c) 1991, 2013, Oracle.  All rights reserved.

Connecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=LISTENER)))

STATUS of the LISTENER