Sometimes you might be asked for a 2FA verification code even though you checked the box to "Trust this device and don’t ask me for a code.” This is because you are using different browsers from your computer, or your browser, like Chrome or Firefox, doesn’t have cookies enabled or is set to delete cookies after a certain period.
If you don’t want to enter a 2FA verification code, try these tips:
First, edit your browser’s cookie settings. You can either set your browser to save cookies or add an exception for Zeppelin Account cookies by adding [*.]gozeppelin.com.
Google Chrome
Mozilla Firefox
Microsoft Internet Explorer
Turn off incognito mode. Incognito windows can't use cookies from other browser sessions on your computer. To sign in, open a non-incognito window.
Check "Trust this device and don’t ask me for a code" for each different browser that you use on the computer and adjust their cooking settings.