Make some switchs (alter system switch logfile;) and check if the destination 2 has problem:
ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2 = DEFER; ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2 = ENABLE;
select error from v$archive_dest where destt_id=2;
sqlplus sys/password@Standby as sysdba (from the primary system) and sqlplus sys/password@primary as sysdba (from the standby system)
I want to understand one thing, You were able to connect from primary to standby and vice versa using the Net service? and you having only issue with log shipping?
set lines 200 set numwidth 15 column ID format 99 column "SRLs" format 99 column active format 99 col type format a4 select ds.dest_id id , ad.status , ds.database_mode db_mode , ad.archiver type , ds.recovery_mode , ds.protection_mode , ds.standby_logfile_count "SRLs" , ds.standby_logfile_active active , ds.archived_seq# from v$archive_dest_status ds , v$archive_dest ad where ds.dest_id = ad.dest_id and ad.status != 'INACTIVE' order by ds.dest_id /