I have tried factory resetting my camera model DS-2CD2512F-IS several times, but it never gets the 192.168.1.64 IP address and does not show in the sadp tool. I have tried putting my computer on a local network with just a poe switch and the camera and upgrading the firmware to the latest using the tftp tool on 192.0.0.128 and it completed the firmware upgrade successfully. I went back to my network on 192.168.1.1 and when I reset the camera or simply plug it in, nothing. I cannot find where it's getting set, and have no idea what the problem is. I've tried holding the reset button for 10, 15, 20 seconds and nothing. I am not sure what to do at this point. I have 3 other cameras that work flawlessly but this one has had me puzzled for weeks.