****SOLVED*** (for my situation at least) UPDATE: I'm experiencing this as well through the Windows Evernote app. I fixed it by disabling 2fa on my *Gmail account* on my laptop. If you are using a google account, the *Google 2fa* (NOT Evernote 2fa) process through the Evernote app is broken. I turned on my 2fa again through Google and my Evernote hasn't lost access, so it appears to be a one off fix. This has been an issue since 2013?