Diagnosis
Intermittent offline periods point to an unstable Wi-Fi connection. The camera is losing its link to the router and then reconnecting when the signal flickers back.
How to Fix It
You need to find and eliminate the source of the interference. 1) Check the camera's Signal Strength history in Device Health for drops. 2) Common culprits are large appliances (microwaves, washers) kicking on, metal siding, or thick masonry walls between the camera and router. 3) If you can't move things, a Wi-Fi mesh system or extender dedicated to that area is the most reliable fix.
If That Didn't Work
Your router itself might be dropping connections. Try rebooting your router and modem. If the problem continues, the router may be failing and need replacement.
Heads Up
The camera will show as 'Offline' in the app during these drops, but it may still be recording events to its internal memory if motion occurs. Those recordings should upload once the connection is restored.