Akaka How do you make your meetings with a computer connected via WIFI? If yes, please connect it via LAN cable.
I have now renamed your 2.4GHz WIFI and added a _2.4GHz at the end. Please log in to the modem and change the password for the 2.4GHZ WIFI. After that connect all devices which are further away from the modem with the 2.4GHz WIFI, all other devices with the 5GHz WIFI.