How to reset the admin password of a 3com superstack switch

This is how you do that :

Connect to the switch with the serial cable and putty.

Login with the credentials recover / recover

Reset the switch (power down, power on) within 30 secs

Now you can re-configure your switch with all the necessary accounts like admin/manager/monitor/security

You can even disable the recover possibility, hope you didn’t do that because then these steps won’t work. 🙂