Hub Wi-Fi signal level is too low, how can I improve it?
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First, it's important to understand the common factors that can affect the Wi-Fi signal level of the hub:
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1. Distance: 
  
   - Wi-Fi signals have a limited propagation distance. As the distance increases, the signal strength decreases. If the hub is too far away from the wireless router, the signal may become weaker.

2. Obstacles: 
  
   - Physical barriers such as walls, floors, furniture, and metal structures can obstruct the propagation of Wi-Fi signals. Concrete walls, brick walls, and metal obstacles, in particular, have a greater impact on the signal.

3. Interference sources: 
  
   - Other wireless devices, electronic equipment, and household appliances can cause interference, such as microwave ovens, Bluetooth devices, cordless phones, wireless cameras, etc. These sources of interference can disrupt the Wi-Fi signal and potentially cause the hub to go offline.

4. Signal interference: 
 
   - Nearby Wi-Fi networks can interfere with your Wi-Fi signal, especially when signals overlap. This interference can cause a degradation in signal quality.

To improve the Wi-Fi signal level by optimizing the deployment environment of the hub, follow these steps:
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1. Install the hub as high as possible and keep its antenna vertical.

2. Place the hub in a central location to avoid obstacles.

3. Keep the hub away from obstacles such as metal objects and sources of signal interference.