Frequent Connection Disconnections and Reconnections

Cause Analysis

Frequent disconnections and reconnections of Cloud Control App (background notifications showing "Device Online / Device Offline") may be caused by the following factors:

1. Phone Background Management Mechanism
   • Low-memory phones or system policies may actively terminate Cloud Control App background processes.
   • When the App is killed by the system and auto-restarts, it may trigger disconnections and reconnections in a short time.
2. Unstable Network
   • Intermittent Wi-Fi or mobile network connections, delay fluctuations can cause frequent interruptions in the connection between Cloud Control App and the server.
3. Server-side Fluctuations
   • Temporary abnormalities in central control servers or cloud control servers may also trigger "Device Online / Offline" notifications.
4. Background Network Restrictions Due to Lock Screen or Screen Off
   • Some phones restrict background apps from accessing the network when the screen is locked or off, especially more noticeable in Wi-Fi environments.

Troubleshooting Steps

1. Screen-On State Test
   • Keep the phone screen continuously lit and observe if the connection remains stable.
   • If the connection is stable with the screen on, it indicates that disconnections may be caused by lock screen or screen off.
   • Reference: Solution Tutorial for Disconnection After Lock Screen or Screen Off.
2. Foreground Operation Test
   • If "Device Online / Device Offline" still appears with the screen on, ensure Cloud Control App runs continuously in the foreground and avoid opening other apps simultaneously.
   • If the connection is stable, it indicates unstable connection during background operation or the App being killed by the system.
   • Check if Cloud Control App auto-restarts after being killed by the system, improve stability by disabling battery optimization and locking background tasks.
3. Network Troubleshooting
   • If the previous two steps don't resolve the issue, try switching between different networks (Wi-Fi / Mobile network) for testing.
   • Gradually narrow down the network environment scope to identify network factors that may cause disconnections.

Professional Summary

Through the above steps, you can quickly identify the causes of frequent disconnections and reconnections:

• Lock Screen or Screen Off Restrictions → Adjust system and App settings to ensure stable network during sleep.
• Unstable Background Operation → Background locking, ignore battery optimization to ensure stable background operation of Cloud Control App.
• Network or Server Issues → Optimize network environment or contact server maintenance party.