Yes, I know, it’s an old thread, but the answer is directly related to the question,
so it would be stupid to open another thread.
After re-image of the DX4000 I had the same issue with the password
and I really NEVER had the opportunity to set some paswords.
So I tried some known simple passwords and voilá…
The password for the Administrator account after a fresh re-image (deleting all data) is: Admin
This is for the EMEA-Image. For PanAm I didn’t tried yet.
I hope, this was useful.