I got my WiFi unstable some time ago. I switched to LAN but not I have a laptop with WiFi only and the problem back.
I tried different configurations with Tx\Rx power, different band types and frequency. But failed. The internet is unstable
Now I begging community to help.
How do I test: ping the router through WiFi connection. It is unstable. From 1 ms to more than 100 ms.
How many devices are connected to the router: not more than 5 at the time.