You have to provide more information:
What happens when you try to connect?
Are you getting a password error?
Are you unable to find any access points?
Are you able to connect to some locations but not others?
Have you tried Pandigital's support site and troubleshooting tips?
etc.
Remember, we aren't there so all we know is what you tell us. Try to imagine how you would answer the same question given the amount of information you gave us ...