Same problem again with update (manual this time) kubuntu 18.04 update to "Ubuntu 4.15.0-123.126-lowlatency 4.15.18" deletes WiFi but Ubuntu 4.15.0-122.124-lowlatency 4.15.18 works wifi correctly.
Same problem again with update (manual this time) kubuntu 18.04 update to "Ubuntu 4.15.0- 123.126- lowlatency 4.15.18" deletes WiFi but Ubuntu 4.15.0- 122.124- lowlatency 4.15.18 works wifi correctly.