We had a similar issue and this solved it for us:
We have identified the issue regarding the password applied to the BIOS of your Tactus or Dynabook devices.
Please use the supplied password with 0010 or j suffixed.
For example, if the supplied password is 123xyz456, use 123xyz4560010 or 123xyz456j.
Once you try this could you please let me know how you get on?