Internet connection problems

My laptop, starting a month ago, doesn’t connect correctly to wifi here anymore.
I’ve rebooted oodles of times, turned on airplane mode, forgotten the network, and asked Windows to troubleshoot the connection
Sometimes, my laptop sees no networks at all, and other times, it connects to the local network, but without intern internet access

It connects to any other WiFi I’ve encountered over the last month just fine

Ideas anyone?