Interesting, I have a router with exactly the same chip. 5GHz is okay but flashing anything other than official firmware breaks the 2.4GHz. Suddenly all of my

Interesting, I have a router with exactly the same chip. 5GHz is okay but flashing anything other than official firmware breaks the 2.4GHz. Suddenly all of my ESP8266 are disconnected. My Brother printer also cannot reach the WiFi.