Problem solved. In Properties/Advanced, there is a radio on/off button, it was OFF. Switch it to ON brought everything back to life.
This is not Function/F8 on the MSI to switch Intel wireless on/off, this radio switch seems to override it.
No idea why it was OFF! Could the virus definition upgrade made it? Could my wife switch it off accidentally? Possibly !
This is not my laptop, I only fix it if it goes wrong
Thanks for staying with me to troubleshoot, I appreciate your help.
Thanks