[USR-TC] no downloads on connecting to total control

I have a 3com total control hub with 8 DSP cards. Its been running ok for quite a while, but, recently it allows subscribers to connect but they don't get downloads from the Internet at all. Does anybody know the cause of this and how it can be solved. I am desperate and seriously need help. Jerome --------------------------------- Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now