Hi All, I’m hoping someone can help me please as I’m a total novice!! I have a Hikvision DS- 7200 Turbo HD DVR. Everything was working fine then the cameras suddenly stopped working and nothing is recording. I’ve noticed at night that the IR lights on the cameras are flashing on and off. Also, the light on the power adapter is flashing on and off. If I unplug the power supply to the cameras then the light on the power supply stays on permanently though. I’ve done a total system reset but still the same problem. Can anyone point me in the right direction please? Many thanks.