I have a 5 year old laptop running under XP which I replaced eighteen months ago because it had become temperamental in starting up and was getting old and a bit slow anyway. It was unused until now when I decided to see if I could get it working to pass it on to someone who would like a computer and can't afford one.
When I abandoned it, it was working fine apart from this startup problem, and connected to our wireless network without any difficulty. It now 'sees' the network, which is the same as before, and tries to connect to it, but stays in an endless limbo, saying 'validating identity'. It doesn't give me any opportunity to enter the security numbe, just sits there giving this message endlessly. I cannot see any option which enables me to correct this.
I would be most grateful for any help to sort this out.
P.S. Three other computer work fine on the network.