I have never had to search down paths for cables in the past in our networking room. I see that on the wall plate it shows numbers like 1-10 and 1-11. I have checked many rooms and when I go to the networking patch panel for 1-10 and unplug it the computer on the corresponding end still has internet connection. So 1-10 on the wall plate does not correspond to 1-10 on the patch panel. This is happening on many numbers. Did the people who installed this be wrong many times? Very surprising. Anyway. How would I go about finding the cable in each of the rooms and where it is actually going into the patch panel? What do I use for a tester and how would I hook it up?