I just got hacked
I think it’s strange you don’t get prompted for the authenticator right after setting it up, but I believe it only prompts if your IP or general location (one of the two) change.
If you have a dynamic IP address, I would try changing it (in most cases, hotplugging the power to the modem works). If it prompts after that, all is working.
Someone else might have better advice though. It’s unfortunate you got hacked :/ If you haven’t already, do: https://en.support.guildwars2.com/app/answers/detail/a_id/9212/~/hacked-accounts
If you have a dynamic IP address, I would try changing it (in most cases, hotplugging the power to the modem works). If it prompts after that, all is working.
He could not get any prompt even if he changes the IP. The wonderful security system based on the IP most of the times doesn’t save a small range of IPs (<255 hosts) as safe but, instead, takes for good a much bigger IP family: just to make an example, something like from 90.0.0.0 to 90.255.255.255 gets tagged as safe and so, even if he changes IP, it’s much likely that his ISP will give him an IP which is in that range anyway thus not getting any prompt
VII Guild
Elementalist
If you log into your account via the gw2 website, there should be an option in there that shows you the IP’s that have connected to the game via your login info, you can tell it to forget all networks, then when you login next time it should prompt you to enter the authenticater code to enter the game, in there you should also have the ability to link the google auth to your account.
ArenaNet Communications Manager
If you need help with this, please contact Support by filing a ticket through the “Ask a Question” tab on that linked page. They will be able to assist you. For tips on what information to provide in a ticket — mostly intended for security reasons to establish that you own the account — please read this post and provide as many suggested details as possible to expedite the ticket.
Communications Manager
Guild & Fansite Relations; In-Game Events
ArenaNet
If you log into your account via the gw2 website, there should be an option in there that shows you the IP’s that have connected to the game via your login info, you can tell it to forget all networks, then when you login next time it should prompt you to enter the authenticater code to enter the game, in there you should also have the ability to link the google auth to your account.
Thanks you all for your help! This method I quoted here worked like a charm. Fast and easy. Just delete all authorized and relog. THX!!!