Never really had a problem until this particular one device I’m drawing a blank on the name of the company they cell hosted cameras Verkada
And it’s kind of funny because I’ve installed a few cameras cameras at this place, and they made a point to tell me to use patch cords

This particular, when I used the crimp, seems like the crimp is bending the pins inside the device. This particular device was an intercom system that’s outside the main door.