yesterday evening I was surfing the net and went to change websites.
I couldn't connect to it or even to google or my e mail account!
I assumed router was having problems so I turned it off for 30 minutes but it made no difference.The laptop was connecting to the router ok.
I then thought the ISP server was out so I went to bed.
This evening still no connection so I connected the router to the laptop with an ethernet cable and went thro' set up BUT didn't alter anything just clicked next at each stage.
Lo and behold everything is now back to normal wireless connection to the net.
Any ideas whythis occured?

It's electronic! It works in mysterious ways. :D