Visit the app store for your mobile platform of choice, and locate the “Google Authenticator” app. This app is provided free of charge. The two-factor authentication scheme used for Guild Wars 2 is fully compatible with this app.
Follow the instructions found here: https://help.guildwars2.com/entries/27626157-Mobile-Authentication
Good luck.
its ok but windowsphone NOT use google authenticator….i need windowsphone application not android
https://account.guildwars2.com/account/security/totp
have 3 link…
1) Appstore on IPHONE
2) GooglePlay app on ANDROID
3) Windows Phone …but this app not available
windowsphone cant use android apps or iphone apps! i need a windowsphone application like blizzrad authenticator or any…
just click on " my account " – Security ..Step one get the app, click on windows phone icon…and u can read.." this application not available " …