If Network Magic prompts for a password when you try to access shared folders on another computer in your home network, there is likely a problem with the user names in use in your network.
This problem can occur if you have the same user name on at least two different computers in your network, but these computers use different passwords. This problem results from the standard way in which Microsoft Windows makes sure you are the right user before allowing you access. In addition to the difficulty of dealing with a password, sharing will not work properly in this situation.
To resolve this problem