ds-2se4c425mwg-e/14(f0)

Hello, my 4C425 is installed under shade, but its PTZ gets some sunlight between 3:00 PM and 6:00 PM. During this time, the 4C425 disconnects from the switch, and the only solution is to restart it, which sometimes needs to be done multiple times if that time period is not passed, and after that...