I have this user account linked with my Facebook account. Also, I was successfully able to associate with Android Enthusiasts, Super User, Stack Overflow, and 4 other Stack Exchange sites.. but now when I login for the first time on Server Fault (using the Facebook account), it loads as a new one and fails to associate.
I even go to my profile > accounts on Server Fault, and it shows "We found matching accounts on other sites in the Stack Exchange network:" (and shows Android Enthusiasts, Super User, etc..)
I click the button below it "Associate with other sites".. it takes so long and nothing happens. The page just refreshes and nothing is associated.. The main thing is, there's not even an error message displayed.