How-to reset password admin user?
There are two ways:
The first one is establish the connection with DSS using PuTTY,
The second one, accessing the console directly.
Here you can find How To article for connection with PuTTY but depend if you have enabled DSS remote console before: kb.open-e.com/How-do-I-connect-to-the-console-remotely_97.html .
For both, when you are connected and console screen appear, press CTRL + ALT + P.
If you are sure that you want to apply those changes press Enter. The only data that will be changed is the DSS password and it will be the default password which is “admin”