So you’re trying to administer your Netscaler on firmware 10+, only you’ve just updated Java, and now none of the applets will load (“Java Applet could not be loaded”). Bummer.
Good thing there’s an easy fix. Just go to Control Panel -> Java -> General and Click “Settings” under Temporary Internet Files, then untick “Keep temporary files on my computer”.
Then go to “Security” and move the slider to medium.
And voila, you can once again use your Netscaler!