Sonoff light bulb pairing
If you have problems pairing the Sonoff light bulb, follow these steps. Maybe it will help you.
- Turn off the router
- Make hotspot from another phone with the same SSID and password as your router's Wi-Fi
- Try the pairing process again
To put it into pairing mode, switch the bulb ON-OFF 3 times, and it will start blinking.
I think that 5GHz bandwidth is interfering with 2.4GHz. Because of that, the light bulb isn't discovered by the app.