If your eufy Smart Safe S10 appears offline in the eufy Security app, please try the following troubleshooting steps to verify if the issue can be resolved.

• Please confirm your router has access to the Internet.
• Please make sure your 2.4GHz WiFi network has a strong and stable signal.
• Please make sure your Smart Safe S10 is not installed at a location that is unable to receive a stable 2.4GHz WiFi network connection from your router.
• Please try to move the Smart Safe closer to your router, if possible.
• Please remove the Smart Safe from the eufy Security app first, and then set up the Smart Safe again as a new device.