Network Jack Doesn't Work But Plug Does?

All wires terminate in the basement as a RJ-45 plug, to be plugged into a switch housed in an old circuit breaker box. The first wire went off without a hitch, the jack works, the plug works, all is right with the world. The router for the home is currently plugged into that outlet so as to give the entire network as we build it internet. The second outlet is giving us problems though. I've fished the wire up the wall as before, and the length of wire is shorter than the first run. When I terminate the end upstairs as a jack, then plug in my laptop, it refuses to connect. It says the network cable is unplugged. If I terminate the cable as a plug, then plug it directly into the laptop, suddenly everything works. I have tried so far 3 different jacks, tested continuity on the jacks, and tested continuity on the wire to the jack pins to make sure the terminal block was working and everything came back green