Got New Cameras

I purchased two new ZP-IBH23-W cameras and I cannot get either of them to connect. I have successfully done it in the past but it has been awhile. Has something changed? Is the QR code method still used? In my case the camera will flash the green LED then flash the blue LED then green again then the app times out. I am using the correct wifi password. My other cameras work fine. I have tried varying the distance from the camera to the phone display, phone screen brightness, etc., nothing works. My network is 2.4 GHz WPA2 PSK.