Have you lost the ROOT password for the system?!
If you have another user with “system” access you can try running
RESET_LOGIN_PASSWORD “username” from the Maintenance page
OR
ResetLoginPassword from putty RAW port 2002
OR
from the RS232 port on the front
Example from telnet = ResetLoginPassword system
More information
This should be done from the maintainance port, if you are only connected via IP then open Putty and open a RAW connection to the controller on port 2002 then type…
4.1 and above:-
type the command ResetAllLoginPasswords (see Below)
-> ResetAllLoginPasswords
Attempting to Reset Password for all System Admin Users.
The password has been successfully reset to default password ‘password’ for User
‘cvd’.
Resetting Password for all System Admin Users complete.
value = 0 = 0x0
If you know the user name that you wish to reset you can do this using the following
-> ResetLoginPassword “system”
Attempting to Reset Password for User ‘system’.
The password has been successfully reset to default password ‘password’ for User
‘system’.
value = 0 = 0x0