Purchased the 2 pack from the Apple Store and are now connected via Airport Extreme (3rd generation) via 2.4 GHz. (SSID is hidden) Works fine and dropbox sync works, alerts work, all seem to work very well. Issues I had was I didnt read the manual and tried setting up with 5 GHz and realized only works with 2.4. If youre setting up the camera, be sure to have your iphone on the 2.4 band - I tried from 5 band but didnt work. Other issue I had was I tested a firmware update on 1 camera first to make sure it works. After the firmware update, the camera did not show when on LTE. Worked fine on wifi connection. The fix: deleted camera and re-added to the app via qr code etc. and now shows fine on both wifi and lte. Assumption is the firmware disconnected the camera. Now works while on WIFI or LTE. The firmware takes the entire 15 minutes to apply to each camera. Build quality is good. Wall mounts are good. Quality is adequate for my needs. Works well looking into balcony at night with porch light. Captured movements at night properly.