I've gotten hold of a D-Link DGS-3324SR that's going to replace my old dumb switch at home. Problem is that the seller can't remember the passwords, and D-Link give me the backdoor account without some kind of a reciept. Is there a way of resetting this thing without using the backdoor account, or a way to generate the backdoor password? D-Link said that it's a combo of the MAC and possible the name of the switch.
This appears to be the user manual to the device- http://www.manualowl.com/m/D-Link/DGS-3324SR/Manual/157365
According to the manual, if you can do a hard reset on the device (by pressing a physical reset button), it should restart with no username or password. pg 25