To turn on 2FA, you need to log in to your Dashlane account.

Make sure all your devices are set to the same time. If you have a time difference between the device that provides the codes, like your mobile phone, and the device that requires the code, like your computer, the codes might be considered expired even though they were just generated.

If you run Dashlane in a supported web browser, such as Chrome, Firefox, Edge, or any other Chromium-based browser, use these steps:

Select the Dashlane D icon in your browser’s toolbar.
Enter your Dashlane ID—email associated with your Dashlane account—and Master Password.
Select Log in.
In the extension window, select Open the web app.

If you don't have the browser extension installed, you can download and install the extension and log in to your Dashlane account.

Using Dashlane Authenticator