Wifi not working well on laptop?

Question

Iron

Router Zyxel Keenetic Lite III. When connecting a laptop via wifi, the connection goes well. If nothing interferes with the signal between the router and the laptop (the human body, wall, laptop is not turned towards the router, etc.), then everything works stably on all devices that are connected via a wifi network. But as soon as there is a hindrance, the Internet begins to "stupid" on all devices. What could be? I changed the channels, checked the wires going to the module.

Answer 1

Perhaps the problem lies in the wrong location of the router. The router should be located in the center of the room in which the use of wireless devices is expected.
Try updating the firmware of the router by downloading it offline. site.
Firmware instructions: link
Latest firmware: .zip archive
Alternative firmware: IXBT