During lunch time in the break room of a company, Wi-Fi connectivity on the 2.

Employees are using their cell data instead of using the Wi-Fi

The AP in the cafeteria keeps rebooting due to lack of PoE budget on the switch

Toasters and ovens are heating up the air, raising the noise floor with the Wi-Fi on the 2.4 Ghz band

Microwaves in the cafeteria are interfering with the Wi-Fi on the 2.4 GHz band