ORA-01017: invalid username/password; logon denied
ORA-16191: Primary log shipping client not logged on standby
The solution is to create the passwordfiles with orapwd using the argument 'ignorecase=y':
% orapwd file=orapwORCL password=crash_on_install ignorecase=y
This issue has been documented by several bloggers and forum participants, but there is still no note in Metalink as of today. I'm not sure what part of the codepath contains this bug or if perhaps this is one of those that would be addressed with the "not a bug" response from dev.
You will probably have found this article after following the instructions in the error documentation:
Check that primary and standby are using password files and that both primary and standby have the same SYS password. Restart primary and/or standby after ensuring that password file is accessible and REMOTE_LOGIN_PASSWORDFILE initialization parameter is set to SHARED or EXCLUSIVE.
Restart the primary. I love it :-) Jeez.
All I can say is I am sorry you went through this.