I have this problem, too: new v5 WA850RE extender set up but two Macbooks (one older, the other far newer) won't connect and claim I have entered an 'invalid password', but my iPad, iPhone, a Lenovo...

Model : Hardware Version : Not Clear Firmware Version : ISP : The box shows two and you would think you would get two - I'm thinking of getting a TL-PA411 starter kit. But when you look at package...