nas:undefined after fvdw-sl firmware version 16-0 upgrade

Hi,
I recently loaded fvdw on my nws2cl using the windows tool. This got me up to firmware version 15.1 through which I was able to access the web interface.
After exploring this for a bit I downloaded the 15.3 firmware and, using the firmware update tab in the web interface, updated to 15.3 with no problem. I then repeated the process for the 16.0 interface. This seemed to go fine, but after the reboot the web interface is now empty of options. At the top it says "NAS: Undefined" and states that I have the 16.0 firmware. All other options are missing.
Update: Upon trying Internet Explorer on a Windows XP machine, I found that the web interface seems to work OK. It is failing consitently though on Google Chrome (v40).
Could I have screwed up the second firmware upgrade? Is there a known issue with 16.0 and the web interface (the file system still seems OK) Is there way to "roll back" to 15.3 without access to the web interface?
Thanks!
--jp
I recently loaded fvdw on my nws2cl using the windows tool. This got me up to firmware version 15.1 through which I was able to access the web interface.
After exploring this for a bit I downloaded the 15.3 firmware and, using the firmware update tab in the web interface, updated to 15.3 with no problem. I then repeated the process for the 16.0 interface. This seemed to go fine, but after the reboot the web interface is now empty of options. At the top it says "NAS: Undefined" and states that I have the 16.0 firmware. All other options are missing.
Update: Upon trying Internet Explorer on a Windows XP machine, I found that the web interface seems to work OK. It is failing consitently though on Google Chrome (v40).
Could I have screwed up the second firmware upgrade? Is there a known issue with 16.0 and the web interface (the file system still seems OK) Is there way to "roll back" to 15.3 without access to the web interface?
Thanks!
--jp