Ok I'm on a 2Mbs service and all runs fine wth the supplied router, except for any program where i need to forward ports. (BT voyager 205) even after doing everything needed (setting rules, allowing firewall exceptions etc) I still find port tests always fail. That and the relavent programs then fail to perfoem. I do have an old internal adsl modem which i have tried and found to work perfectly in every way (with the bonus of not needing to forward ports).
My real point is what am i losing out on by not using the router?? Is it less secure for me or what??