ERROR:Failed to validate GUEST user in Profiles.

Hi,

What R12 release you are running? What is the OS?

I am unable to reproduce the issue on my R12 (12.0.4) instance as the AOL/J test shows the following:

Under "Verify DBC Settings" page:

Checking guest user/password... ...verified:GUEST/ORACLE

Continue to next step only if you see no errors in this page. 

Under "Making AOL/J Connection":

=>Testing validateLogin...
validateLogin(GUEST,ORACLE) returned: true
Successfully created WebAppsContext, login validated.

Get the value of the GUEST password from the application context file (search for "s_guest_pass"), and use this password in the following command:

SQL> select fnd_web_sec.validate_login('GUEST','Guest Password')
from dual;

This should return something like the following:

FND_WEB_SEC.VALIDATE_LOGIN('GUEST','ORACLE')
--------------------------------------------------------
Y

Please verify that the GUEST password is set properly in the following:

1) DBC files (under $FND_TOP/secure)
2) "Guest User Password" profile option
3) The above SELECT statement

Regards,
Hussein