I had a Dahua IPC-HFW5302C running off POE on a 600 ft Ethernet run. And yes I'm aware that exceeds the 100m limit. Literally overnight I lost signal on the camera. I have tested the 600ft cable run and it tests good. I have brought the camera back to my house and it tests fine, I have switched to a new IPC-HFW4300S V2 just to see if that solved anything. I'm thinking it is power related. I put a POE tester on the run and it shows 44V, .05 A and 2.4w, The camera spec says it uses up to 6w but does not specify a minimum. I ran the link for about 8 months without a hiccup. I have tried an EnableIT extender but the result is the same. Any ideas....