sometimes you will encounter something like this when you're turning on your 2FA google authenticator,
first what should you do is resynch the clock.
you need to resync your PC/Laptop computer to google times so google authenticator can read the code properly.
i encountered something like this a year ago when i tried to login on kraken.
sync your PC/Laptop clock to google clock and then resync the google authenticator clock.
Thank you for this thread, guys!
I encountered today with this kind of problem at NOVA Exchange.
When I scanned my QR Code Google Authenticator MFA Code, the result is INVALID.
I tried to register for new account, but the site is under maintainance.
Novaexchange disabled their new register account,and they are not under maintenance.
if you can not reach their website that mean your IP blocked by them.
because 2 days ago novaexchange attacked by people and they are blocking the IP of the attacker.