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    DS-2CD2135FWD-I Switching To Black & White Sometimes

    Hello, New to HIKVision and Cams in general. I've got (4) DS-2CD2135FWD-I connected to a Synology NAS. I am using Surveillance System software built into the Synology. I have noticed that at times, the Cams will switch to black and white. Is there any way I can set them to always stay in...