My cameras went out. I thought the Dvr was bad, so,I bought a new system, come to find out it wasn't the Dvr. For the life of me I can't tell you what happened. All of sudden after about two weeks the cameras are working all but two of them. And they are telling me that I have no signal, both are new cameras.. The night owl protect app worked with the DP2 dvr but will not work with the BTD2 DVR, according to the DVR that app is supposed to work, but it dosen't. so I don't have camera access on