I have an interesting problem, I made about 60-70 feet long Cat6 cables to use with PoE cameras. When I test the cables, the tester shows everything is perfect. When I connect the camera using this cable, it has the power (so PoE is working) but router does not see the camera. I used the same cable to attach my computer to the network, this case router sees the computer and I get an IP address.
I bought 100 ft ready to go cable and tried the same camera, it works without a problem. Does anyone know what am I missing? Are the cameras communicate different than computers so the computer gets an IP but camera is invisible to network using the same cable.