UPDATE:
back home now and my wifi which shows and works on my other PCLOS install (also KDE, fully updated) doesn't show on the laptop in question anymore. It gave problems when I tried it in my holidays, no doesn't show my home wifi either.
Even removing the current connection and rebooting doesn't do anything.
What can I do?
Do I need to reinstall / remove anything to make my wifi work again?
How can I make sure there's no hardware failure? (It worked before I left for holidays and only failed there, no impact to the computer)
Thank you very much in advance for any help and suggestions offered.
Aguila