Hi guys, I am having problems setting up the motion detection settings with my Hikvision DS-7608NI-I2/8P NVR. I keep getting an error message when I try to enable the motion detection in the Event / Normal Event menu. In fact I can not seem to change any settings in the Normal Event menu. I am using four Dahua IPC-HDW2831TM-AS-S2 cameras and have tried selecting a different one each time but still the same error message. I have also tried performing a full factory reset on the NVR but still the same outcome. Does anyone have any suggestions as I am struggling ?