The following steps by JavaLawyer did not work for me I still get the aplug error
Hogan
The following procedure can be used to adjust the Java security exceptions in Windows after updating to the latest Java version.
Open the Start Menu on the bottom left of the Windows Task Bar
Expand All Programs and navigate to the Java folder
Open Configure Java inside the Java folder
The Java Control Panel will open in a new window
Select the Security tab
Press the Edit Site List button
Press the Add button and enter the D-Link Cloud camera URL or IP address
Press OK (Edit Site List window will close)
Press OK (Java Control Panel window will close)