Upgrading to Siebel CRM
You must reset any passwords on the Siebel Gateway that were previously encrypted using RC4 encryption. In the current release, such passwords are encrypted using AES instead of RC4.
Furthermore, the Siebel Server system service and server components don't work after a migration installation until you have updated them to use AES password encryption. Make these changes in coordination, as described in Siebel Installation Guide.
Note: When you upgrade to the current release, the Siebel Server system service password, which is
required to connect the Siebel Server to the Siebel Gateway, is automatically reencrypted using
AES encryption. The Siebel Gateway password parameter, which is set at the Siebel Enterprise
level, is also automatically reencrypted. You don't have to reencrypt these passwords manually.