If you install 4.1, the default settings of login into Administration Console by using iManager are changed. This is done to ensure higher levels of security. However if Access Manager is upgraded from a previous version, these iManager settings have to be manually changed to ensure security is maintained.
To change the default settings in the Administration Console:
Click Administration Console > Configure > iManager Server > Configure iManager > Authentication and change the following settings:
Deselect Remember login credentials (except password). This option is enabled by default if the administrator has not modified it before upgrade.
Select Hide specific reason for login failure. This option is disabled by default if the administrator has not modified it before upgrade.