Do you have the router direct connected to the hub and centrally located. If you are using a mesh network maybe the signal is dropping between units. I have my router and hub centrally located and connected to an Ethernet cable. I have several cameras outside mounted on trees probably 100ft away with no problem. I am going thru brick walls and double pane glass windows. The signal on the distant cameras is down one bar but works fine. The battery life is a bit shorter but I still get 3 + months out of the batteries on these 2 cameras.