Why does the network disappear?

Question

Computer networks

Situation: there is a router, 10 users are connected to it via WiFi. Sometimes some users lose the Internet (a yellow exclamation mark appears and pings to the router do not go). Disconnecting-connecting solves the problem. Clients have a static IP and no one occupies their IP (DHCP list is a separate range). What could be?

Answer 1

The router can be configured to automatically change the channel - this is an addition to the standard and some older devices (or their drivers) may not support this.
It turns out like this:
1. The router changes the channel and sends out an alert to clients.
2. devices that do not support this simply lose their connection, and then see this network on a new channel and connect.
Try updating the WiFi card drivers on your devices or hard-configuring the channel on your router.

Answer 2

There can be a whole bunch of different problems, ranging from clogged frequencies to a bad OS on the router.