Poor location of the router: If the router is placed in a corner or behind a partition, the signal will be blocked, resulting in poor signal quality. It is recommended to place the router in an open area, such as the center of the living room.

Signal interference: Within the frequency range used by wireless networks, other devices (such as microwave ovens, wireless phones, etc.) are also using the same frequency band, which may cause interference to the wireless network. It is recommended to keep the router at a certain distance from these devices.

Router aging: Routers that have been used for a long time may have hardware aging, resulting in signal deterioration. It is recommended to replace the router with a new one.

If your WiFi signal often becomes weak, you can try restarting the router, clearing cached data, or consider replacing it with a new device.