When performing a restore via the web console, the restore process start and ended with no file restored:
[YYYY-MM-DD hh:mm:ss] Start
[YYYY-MM-DD hh:mm:ss] Downloading restore file list ...
[YYYY-MM-DD hh:mm:ss] End
Example: 
Upon further investigation, if the Java console trace level is set to 1, the following error messages are received in the Java console:
Example:
Notes:
For more information regarding Java console trace level, please refer to the following URL:
http://java.sun.com/j2se/1.4.2/docs/guide/plugin/developer_guide/console.html
The message suggests that the memory allocated for the restorer applet is insufficient.
To resolve the issue, please increase the maximum amount of memory available to the restorer applet. You can do so by following the instructions as suggested in
http://servosity.zendesk.com/entries/134760-faq-how-do-i-increase-the-maximum-amount-of-memory-java-heap-size-available-to-the-restorer-applet
In the cases where the affected machine is running on Windows XP / 2003, if the Java version installed is 1.6u3 to 1.6u5. The following error message may be received:
Example:
The error message indicates that the Java plugin cannot be loaded. To resolve the issue, please roll back to a previous version of Java by:
1. Open Control Panel, and select Add or Remove Programs
2. Select Java(TM) 6 Update 5, and then Remove
3. Attempt the web restore again with Internet Explorer
4. The user will be prompted to re-install the Java
5. Select Install
Alternatively, you can also perform the web restore on Windows Vista with Java version 1.6u3 to 1.6u5.