@si_fan I understand how frustrating it can be when your Smart Lock D200i frequently goes offline, especially with notifications adding to the distraction. Here are a few troubleshooting steps that might help resolve the issue:
Check Battery Levels: Ensure that the smart lock has sufficient battery power. If the battery is low, it might cause the device to go offline frequently. Replace the batteries if needed.
Gateway Connection: Verify that your E1 Hub is online and functioning properly since the lock relies on it for connectivity. If the hub is offline, the lock will also appear offline.
Distance and Signal Interference: Although the lock is only about 5 meters from the hub, ensure there are no significant obstacles (like thick walls or large metal objects) that might interfere with the signal. Try moving the hub slightly closer to the lock if possible.
Re-enter the Network: Sometimes, simply re-entering the lock into the network can stabilize the connection. Move the lock closer to the hub temporarily, if possible, and re-establish the connection.
Device Fault: If the problem persists despite these efforts, the lock might be faulty. In this case, I recommend contacting customer service for further assistance.
Feel free to share any further details or updates on your situation, and maybe other community members can offer additional insights!