You could try this.
You'll need a console cable (modem cable)
Hyperterminal 9600baud 8N1
If you it lost the password of the Switch and it does not want to lose
its time sending the equipment in return the 3COM, it is enough to
have access for the door has consoled with this
login and password below.
login: 3comcso
password: RIP000
It appears after that this message in the screen, answers [y]
Do you want to re-initialize this device (y/n) [y]:
If the reply it will be...
Done
Ok all the configuration and passwords of its Switch had been
extinguished and now it accepts the passwords standard of the 3COM.
Default Password
Login: admin
Password: [enter]
Login: monitor
Password: monitor
Login: user
Password: user
Login: security
Password: security
Login: manager
Password: manager
Login: debug
Password: synnet
Login: tech
Password: tech
Greetzzz....Bas
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It works! Now if only I could remember what I did...
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