Irritating WiFi instability

I have problems with WiFi on an Acer Aspire A515-43 with Windows 11. Now and then, the WiFi connection starts behaving strange. It goes down and recovers shortly after some to some tens of seconds just to go down again. The disturbance continues for 2–6 minutes and disappears. It happens at seemingly random intervals, and I cannot associate it with any activity on the system. It may happen while the PC stays unused. I have a background app that pings the router every 3 seconds to keep WiFi busy. I downloaded the WiFi driver from the Acer homepage, but it has the same version as the one I'm usi

Question by Kalle Svensson on Super User, licensed CC BY-SA. We show a short excerpt and link to the original thread as credit.