Check your camera connection (cable and so on), also check your cable to nas maybe bad connector or damanged cable, change to different cable, use rj45 tester at least, I had same problem with poe splitter and hikvision camera, once I connected it sapperatly via single poe problem was gone, in my case it was faulty poe splitter, also if you connect your dva1622 to a slow network it will have problem because of slow bandwidth (for example cheap cable or powerline adapter 100mbit) cameras as well as recording will be glitchy. Also make sure your ethernet cable is not damaged in between camera and router, if its wifi cam signal maybe low and you will need to bring it closer to a router or use repeater, also it maybe router issue, settings or bad router which disconnects for a short time, also it maybe faulty camera that overheats and shuts itself down. Basicaly it could be anything but I can assure you redpill dva1622 as well as dva3221 works stable with no disconnects about a month now. So its not the loader problem. But to find exacly what can be wrong we need more info on your system, camera brand and model, wired or wireless, class of cable, distance of camera from router/switch (in meters), router/switch model, how many cams currently, has it appeared before, did you make any changes to your network setup, what type of connection you use to connect cam to nas: wifi, poe, direct, remote, vm or baremetal (if vm it could be problem with virtual network adapter, wrong network adapter in .vmx file) and so on. The more details you provide, the faster you will find a solution to your problem.
Dear @dimakv2014, I m about getting equipped with dva 1622, poe switch and 8cams hikvision ds-2cd2t47g2 (4mp) and 87g2 (8mp) with acusence linked with cat 7 cables (max 70 m). I plan to locate the cams at 2.5m height and 15 degrees (as stated by synology). 1/do you think the face recognition will be efficient? (I don't want to put 5k€ if it gets hard to work) 2/l would also use it for getting access to the gate of my house, do you think it's feasible to order the gate to open using a dry contact? (instant shutting signal as a push button would do). If you could provide me your feelings, it would help me a lot! Please excuse my poor English. Regards. Olivier lemonnier : lesgabonais@hotmail.com
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Dear @dimakv2014, I m about getting equipped with dva 1622, poe switch and 8cams hikvision ds-2cd2t47g2 (4mp) and 87g2 (8mp) with acusence linked with cat 7 cables (max 70 m). I plan to locate the cams at 2.5m height and 15 degrees (as stated by synology). 1/do you think the face recognition will be efficient? (I don't want to put 5k€ if it gets hard to work) 2/l would also use it for getting access to the gate of my house, do you think it's feasible to order the gate to open using a dry contact? (instant shutting signal as a push button would do). If you could provide me your feelings, it would help me a lot! Please excuse my poor English. Regards. Olivier lemonnier : lesgabonais@hotmail.com