WiFi won't re-connect: "Saved / Unavailable with current security settings"

I don’t see the “Privacy” option in network detail :worried: I have three buttons;

  • Forget
  • Disconnect
  • Share

Then a column of information:

  • Signal strength
  • Frequency
  • Security (it’s WPA/WPA2-Personal - shouldn’t there be WPA3 option? Can it be related?)
  • Network usage
  • Auto-connect (switch)
  • Add device

Then network details:

  • Type (Wi-Fi 5, but sometimes it was 4 and sometimes 6)
  • Device MAC address (just the address, not interactive except copy)
  • IP address
  • Gateway
  • Subnet mask
  • DNS
  • Transmit link speed
  • IPv6 addresses

There is also a little pencil icon in the top right corner. Here I can change the password, proxy and toggle DHCP.

Searching on-line I saw a hint that MAC randomisation needs to be enabled in developer settings. Until now I didn’t use them. I found the setting called “Wi-Fi non-persistent MAC randomization” but toggling it didn’t change anything I noticed.