Wireless 2.4 GHz stopped working firmware RT-AC68U_380.57_0

Hi,

Yesterday I upgraded the firmware to RT-AC68U_380.57_0, but I had a problem. The wireless on 2,4Ghz stopped working.

Situation:

• 2.4 GHz
  • SSID: OoloO
  • WPA2 enabled
• 2.4 GHz Guest
  • SSID: OoloO Free
  • Open
• 5GHz
  • SSID: 0olo0
  • WPA2 enabled
• 5GHz Guest
  • SSID: 0olo0 Free
  • Open

The wireless link works and the DCHP works fine. But when the client on any of the 2.4GHz networks try to connect to...

Wireless 2.4 GHz stopped working firmware RT-AC68U_380.57_0