Answer, to my own question:
After trying a mate's laptop I discovered that the routers transmitter had a fault, a new home hub resolved the situation, the laptop now connects everytime.
Still can't work out why it worked on one day though ?.
Samsung Galaxy S9 review
Wacom Cintiq Pro 24 and 32 review – hands-on
When is the next Apple event?
Gmail : comment annuler l’envoi d’un e-mail ?