When trying to link the accounts in the GW2 Security Page (using Google Auth.) don’t go to fast, wait till it reaches half way mark for the timer on the code, then enter it.
I’ve also noticed this issue with logging into the forums, if I input the code right after it has refreshed, it will bring me right back to the login screen with no error message. Basically wait 5 – 10 seconds in the 30 second countdown before entering a code.
