to the site- check the following things on the pc:
1. check in device manager that the cable modem is in the category network adaptors and titled: "usb cm 351000" ( i am assume it is a silver ntl home modem that you are using)
2a) if the modem is there: go to start -> run -> winipcfg and you should see the usb cm 351000 in the list of adaptors there as well. What is the ip address appearing?
b) if the driver for the modem is not installed properly, it will appearing in device manager as either:
?! usb cm 351000
?! usb cable modem or
?! ambit usb cable modem
double click and chose reinstall driver, and point the wizard to X[cd drive]:/drivers/ambit/
reboot
if the driver is installed but not appearing in winipcfg, it means it is not bound to tcp/ip... post back for instructions on how to fix this.
MB