Hacker what you are refering to
read somewhere apparently that cat5 cable (ethernet) can carry up to 4 connections at a time.
Is that cat 5 (or even cat 3 for that matter) contains 8 individual cables. they form four pairs of cables.
Only one pair of those cables is used (in some higher speed propietry networks two pairs are used, so im told). This leaves another 3 pairs of cables for use in networking.
Yes i know it sounds crazy, and i know that there is no consumer, real life use for all four pairs, and even network technitions generally cant be arsed spliting the cable to use all four pairs (cos its messy, an it takes less effort on there part to just lay another cable).
The final option is just to reset your router, there is normally a button on the unit you push with a piece of wire. I just had to do that for a neighbours connection so i could add more wireless devices.
The only pain with the reset is if you have to reset any security or if you have forgotton the ISP settings, username and password, all of which can be obtained with a phone call!