I've been using a Buffalo Wireless-N Nfiniti router (WHR-G300N) for about 3 months for my wireless network without any problems - I've been using WPA. Suddenly my laptop (HP Envy 17) can't connect to the wireless network any more, but has no problems connecting to other wireless networks. The laptop finds the wireless network but cannot connect - I get an error-message.
I can connect my phone to the wireless network so this seems to be working and my desktop computer has no problem with accesing the Internet through a cable either.
I consider myself an above average computer user but I'm running out of solutions.
I've tried to upgrade the firmware in the router (to version 1.65)
I've tried reseting the router
I've tried unplugging the router for a longer period
I've tried reinstalling the network-card on the laptop
I've tried rolling back Windows 7 on the laptop to a date where I know it could connect (to avoid any updates screewing things up)
Hope anyone has a suggestion for a solution :o)