I have 3 Dahua IP cams that are conected over a 35m cabel to my router. They worked perfectly and then they just disapeared on my network. No signs of video quality or video loss just disconected. Then i somehow got into them by pluging the directly into my laptop and lowering the bitrate. That seast to fix them for 10 months they worked. And yesterday that happend again and I tried the same thing but cant connect to the at all. They are all on static IP. Dont know what to do next. I can see the network light light up and blink but cant access then or see them on the network.