Just changed my password on Airport Extreme using my iMac>Utilities>Airport Utility. I thought that my other wireless units in the house would have to sign in again with the new password. Apparently, that is only partially true . . . I think. My portable computer immediately connected without having to enter the new password. Same with my iPad. Even a Windows 7 notebook computer ! However, my Roku and my PS-3 can no longer connect to my router and bring up Netflix. Question: Do most wireless units such as MacBook & iPad automatically get the new password ? My guess is there is some kind of automatic adjustment for units on the router. Can anyone shed some light on this, please. Thanks.