Yamaha Device: "Access Error" Message

[YamahaMCuser]

I'm experiencing  the same "Access Error" across all (3) of my Yamaha devices all of a sudden - I can play Pandora fine on my PC through web page, and on my phone with Pandora app.  This just started happening for no apparent reason.  Network access from my Yamaha's is fine as they can play Internet radio stations just fine. I can't even log back in/or out - the Yamaha just refuses to even try to connect with "Access error" . I find it difficult to believe all three of my Yamaha Musiccast devices failed at the same time, this must have something to do with my Pandora account?

Moderator Edit: Changing title for clarity

[dora]

Yamaha did an update of a firmware update that fixed this for me. So be sure your firmware is set to auto update if you Yamaha is on the internet or, you can also get it from Yamaha (USA) web site and do it yourself. They have instructions there. But most people do it auto and it just happens. In this case, the main one messed up some stuff and, a week or so later, they fed a v.1 of the update and it corrected a bunch of things.