Is your internet connection beyond 10 megabit? If so a router does slow it down.
Also the most common reason for the slowdown are setups that don't use our forum sticky or admonishments.
I have a pc (windows XP) currently hooked up to a cable modem via ethernet cord. I would like to buy a wireless router such that I can add a laptop and get on the internet wirelessly. However, I am concerned about losing speed with my pc, and figure it would be best to keep this wired (since I have no need for it to be wireless, and it does not have a wireless card). The laptop will likely have a wireless G card, and I am not that concerned with speed for the laptop. I was thinking of buying an older and cheaper Wireless G router that has wired ports. However, I notice that some routers have this 10/100 wired port and others have ethernet gigabit connections. Does this matter in my case? And if so, does that mean I have to buy one of the newer, more expensive models?