Hi all, I have a DS-2CD2655FWD-IZS 5MP which keeps going offline, although the com lights on the NVR port still flash. I have tried a different port with no change. I'm wondering if there is something in my settings that needs to be changed? I'm using a DS-7608NI-I2/8P NVR. And the network cable is only 25m. Thanks in advance.