A TP-Link camera going offline can be due to several reasons, including network connectivity issues, power problems, or even app-related glitches. To troubleshoot, start by verifying the camera’s power source and its Wi-Fi connection. Ensure the camera is within range of your router and that the router itself is functioning correctly. If the issue persists, try restarting both the camera and the router, and consider checking for firmware updates for both devices.