After a family LAN part, one of the patch cables would not come out of the Ethernet jack. Turns out the latching tab was bent and not working correctly; it was stuck. After getting plastic spudger to remove it, i decided that it should be fixed. I have the RJ-45 connectors, crimpers, and cheap tester. This is still something I’m not good at, but after 30 minutes to get things together and work, it was fixed.