Device networking issues

Why only use AP mode (blink slowly) can add device successfully, but EZ mode (Blink Quickly) does not work?

What devices does the App support? How to add smart devices to the App?

When adding a Zigbee sub-device, the message "Unauthorized, unable to add" appears, and the gateway cannot find the device. What should I do?

How to troubleshoot if Wi-Fi device fails to connect successfully?

What is the specification of the Wi-Fi password when adding devices?

Why the device failed to connect (Bluetooth)?

How to add device in App for Internet connection(Zigbee)?

What should I do when my device fails to connect to the network?

My device needs to be configured for the network. How do I reset the device?

Can Wi-Fi and Bluetooth combo devices be added at the same time with two communication methods?