Hello everyone, sorry for my English translator ;-), a lot here helped me with my problems because I am a novice in this world. made 2 weeks that I try to find my problems but unable, I have 2 camera dahua with microsd and the dmss application on my iphone and it works great, the problem is i bought a dahua nvr and when it is on, i have the notifications on my iphone but it records more on the microsd card , I disconnect the nvr, and dmss works again except that I have to format the card each time, my intention was to record on the nvr and the microsd card, I followed the recommendations of the pro here to the letter but it works not yet someone would have an idea?