I would use a simple net scan tool and get the IP address.
I use the free app on my smart phone
There are at least 2 resets
- with the system on push in the reset for a few secs - the one Mike27oct is talking about
- The BIG reset -every thing to factory - and your raid may be gone too
are you sure you want to know this ? Most will do a backup and save the config data before a total reset.
with device powered off -re-connect power and network then hold down power button while pushing reset button in the back for about 10 sec then release both.
Device should now restart in factory reset mode
There may be reset mode between these two ?