Hello, I have two cameras model Hik 2347G1 that have been working for almost a year, powered by POE switch. For a few days now, one of them can't be found on the network and the NVR doesn't see it either. I disassembled it and supplied it directly to the 12v source, but I still can't see it on the network. If I leave it powered on every 10 minutes, the LEDs light up, they stay on for 2-3 seconds and then go out. I did a hard reset but without success. Has anyone else encountered this problem? Thanks!