Hello,
Same story short - did you use (like I did) user: root and password: openmediavault? A simple change of the user (admin instead of root) and access to web interface is granted 
Cheers
dv
Hello,
Same story short - did you use (like I did) user: root and password: openmediavault? A simple change of the user (admin instead of root) and access to web interface is granted
Cheers
dv