It took awhile to figure out and research because the instructions did not mention it at all, but if you cant get the cameras to connect with wifi and use the cable, once you unplug them to move them to their final location, depending on your wifi router and network, they may loose their IP address. One did not, but two did. I saw in another review to change the IP address to static by using the disk provided. Once I figured out where and how to do that, it worked. And if you must delete but it says you still have push notifications, just plug the Ethernet cable back in and it will allow you to remove the push notifications. Very hard to set up three 1080 wifi cameras, but once I found out how, they work fine.