Stop struggling with your setup; here is the real reason your hub fails.
The Aqara Hub M2 is physically incapable of connecting to 5GHz Wi-Fi networks by design.
2.4GHz is chosen for superior range and stability, which is essential for managing Zigbee devices.
Smart home devices require low-bandwidth, long-range signals rather than the high-speed data of 5GHz networks.
Log into your router settings and enable a dedicated 2.4GHz SSID for your smart devices.
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