I made 3 cables with these connectors on each end. One of the connectors needed extra pressure with an RJ45 crimping tool. The plugs on the other two cables did not work. I didn't have a CAT5 tester but I have a multimeter. I checked for continuity by touching the ends of the wires threaded through the connector and gold stud. Pin 1 and pin 8 seem to have the most problems. I added a few more plugs to the second non-working cable. Same results. No data. I went to the local hardware store and bought a few other connectors and got much better results.
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