We received a used MD3820f storage with 2 controllers that do not respond to the connection plugged into the MGMT port, neither by DHCP nor at IP addresses 192.168.128.101/102 or 192.168.129.101/102. The controller does not have a serial port, a mini USB and a normal USB all available in total. How can I make the storage admin interface accessible, or how can I do a factory reset?

Thanks a lot!

Tamas