None of the network cable I cut is working
There's something odd going on that I'm having trouble getting to the bottom of. Every single cable I'm cutting doesn't work. I've cut hundreds of cables in the past, so I'm pretty sure it's not me being inept.
I'll run through what I'm doing so that anyone else can jump in and call me thick:
Cut wire to appropriate length.
Trim half an inch of outer sheath off the end.
Split cables into sequence: w-o, o, w-g, b, w-b, g, w-b, b
Straighten up wires and trim off a few mm of the end so they're all the same length.
Feed into connector and after a final check to see that the cables are in order, crimp.
I'm experiencing different symptoms. Some computers will pick and drop the connection continuously, others won't see anything at all. Using a desktop switch (we don't have proper testers) the cables will sometimes light up, and other times not.
Am I missing something glaringly obvious?