They key does not reliably work with multiple accounts. The funny part is that the button slots seems to be mixed up (see bellow, things configured on one button are only working on a different one, or working on multiple buttons …)

I am thinking either Chrome is unhappy with multiple accounts and is not doing the second handshake, somehow window focus is not on the browser (but I was just typing in it), or the key hardware is broken. I will then do everything I can think of to reset things, and probably it will work. Now if I go to another account I will be back to the situation where the green light never turns blue. The slot 2a is configured for this, but for grins I hit button 3a. So … I clear the browser cookies, reload the key configuration on the key, close the app, pull the key out, put it in, and try again. Chrome does not react in any way, the dialog is still showing. Touching a button and the green LED goes off, the key is dark, there is a long pause, then it comes back. Normally it would turn blue at this point. The light on the security key just remains a solid green.Immediately the “2-Step Verification … Verifying its you” screen appears, and Chrome pops up the dialog “Use your security key with, Insert your security key and touch it”.log into gmail, give the username and password.

I open the ONLYKEY app and see the slot configurations.The green LED flashes then remains on constantly. Logging into gmail with 2FA setup to use the hardware key: Note I have made edits on this post only for clarification. Perhaps this second description will be more clear, scroll down to see the description from yesterday.

Gmail u2f