Without knowing the master code, you are unable to reset the master password.
You can try and dial into the unit with the RA-2400 software and see what the master code is. This can only be done if the remote access password has not been changed from the default 9 8 7 6 5 4.
Your changes will require approval by an administrator before they are published.
The article has been updated successfully but requires approval before it is published.