I recently bought an house, and I'm trying to figure out how to set up wired internet access. The house is pre-wired but I need some advice on how to reverse engineer it.. 3 rooms have rj-11 and rj-45 ...

Someone installed my cat6e wall jack using the "A" pattern. (The A and B patterns are printed right in there to compare with the actual wires.) I checked it and it's "A". I have now put an rj45 plug ...