Network shares ask for USER ID and PASSWORD

I have windows 7 I use a wired network.  It worked wired for a few before the last firmware update and now i can not log on to my network shares because it now asking user id and password. i have anonyoums login in shares and securtty on my PC and still have issues  I have a WDTVLIVE and a share hard drive of 2TB, I am running the latest firmware which worked up till yesterday.  What other info can I provide to you??  Thanks

First, this can happen if you have “Windows Live ID Assistant” installed.   (This happened to me a few weeks ago; it got installed during an update.   Uninstalled it and everything started working again.) 

Give that a check.