I start by going over the router checking if the firmware is current then make sure the channel it is on is proper. Next back to my PC/tablet/laptop and try again at about 10 feet away from the router.
OK never posted in a forum before, but I just don't get why I am having problems. I just moved house, so had to connect to a different wireless than I have used before. It said I was putting the wireless security key in wrong, except I wasn't. I checked a hundred times (exaggeration but it was a lot). Then I got my new housemate to have a look because she had the same problem. Kept trying, same thing popped up. Eventually it just suddenly let me connect. Then it went off again and then I had the same problem trying to connect back to the router. AGAIN it just suddenly connected after several attempts. It is bizarre and it seems like something that could keep happening so I would like to know if anyone knows why it is doing this and how to sort it. I haven't given any specific computer information because I don't know what is needed and to be honest am a bit of dummy when it comes to this kind of thing. Thanks