APP-FND-01542: This Applications Server is not authorized to access this database

APP-FND-01542

Error Message
APP-FND-01542 : This Application Server is not authorized to access this system. Please contact your System Administrator.




Solution:
1. Backup context file .
2. Update the context variable:
s_appserverid_authentication

By default in 11.5.10, this is set to SECURE.
In previous 11i versions, this was set to OFF.
For debug purposes, you can use ON or OFF.

Modes:
- ON : Partial
- SECURE : activates full server security (SECURE mode)
- OFF : deactivates server security

3. Run Autoconfig to instantiate the change.