Login forward Issues to admin website

I’m experincing logon problems with the default console with my Mybook World Whitelight Edition

After connecting with my browser to the device website I get the admin logon screen

After entering the admin (username) and password, the website isn’t redirected to the admin.

The website refreshes the screen and I get back in the login screen. Somehow the forward
meganism isn’t working. 

After pasting the line below  at the ending of the url I do get in the admin console

Check if you have the latest java updates, you can also try using another web browser. Another thing you can try, is pressing the reset button on 4 seconds.