ok so i bought a new computer today came home and connected it to our router, now they other computers wont connect and when i try it says press the configuration button on the access point(i have no idea what that is) or it gives me the option to enter a network key or passphrase instead! witch i dont know what that would be, I have always had a unsecured network and somehow its secured now? and i ahve no idea what to do!!
The new computer is they only one that connects??