I have tried several times now and have just ran out of ideas. The mifi2200 connects no problem at all when I connect the usb cord to it but when I try to do it with the wifi it finds it but then tells me I have the wrong password. I connected my cell phone to it and no problem but my windows xp computer won't find it. I've used the wifi to connect to other routers and had no problem connecting. Any suggestions or what I could do or what I am doing?