Diagnosis
The direct WiFi connection between the camera and parent unit is being blocked or interfered with. This system creates its own direct network, and things like large appliances, metal framing, or even a fish tank can kill the signal short-range.
How to Fix It
First, rule out simple distance. Bring the parent unit right next to the camera (within 5 feet). If it connects, you have an obstruction problem. The most common fix is to change the camera's channel. On the parent unit, go to Menu > System Settings > Video Settings > Change Channel. Try channels 1, 6, or 11. Different channels can avoid interference from your home router or neighbors' devices.
If That Didn't Work
The camera's WiFi antenna might have a poor connection internally. Try power-cycling both units: unplug the camera and turn off the parent unit for 60 seconds. Plug the camera back in, wait for its light to go solid, then turn on the parent unit. This forces a fresh connection attempt on the default channel.
Heads Up
Remember, the 'out of range' refers to the direct camera-to-parent unit signal, not your home WiFi. The camera being connected to your home internet doesn't help the parent unit talk to it locally if this direct link is down.