I have had some questions about some of my Ethernet cables that I use and instead of just pitching them I decided to buy a tester to actually see if the cables were good or not.
The tester I bought on Amazon was only $6.00, so for the price of a cable or two, it quickly pays for itself. The so-called instructions which are included make no sense at all, so I went to Youtube and found a video which explained the procedure. They use a slightly different model, but the procedure is the same.