I have a Toshiba PCX5000 cable modem, and am trying to determine how to enable port forwarding. I do not see that as an option with the basic Sofaware product that comes with the modem. Am I overlooking something? Is this an option of any sort with this modem?

Hi, I have the same prob...Have you found any info on how to fix it yet??

If you are referring to port forwarding from a connection originating from the WAN to the LAN this can be acomplished by adding an Allow and Forward rule in the Security>Rules tab.