Unable to finish 2FA setup with Google authenticater.

Fender

I have an Zywall USG 60 with PIN code by SMS/Email setup as 2FA. I want to change it to the Google authenticator 2FA, but when i scanned the QR code and try to finish the last step with the 6 digit code I get the following error message : we are not able to verify your code.
I tried already to delete the account in the Google Authenticator and setup it for a second en even a third time, but no luck, still the same message: we are not able to verify your code. Can someone advise me what to do or what to check else?

Fred_77

Hi @Fender
i got the same error on a ATP due to date/time mismatch between ATP and mobile (daylight saving was the issue).

WJS

I think your firewall doesn't have internet access.
I have the same issue when I inactive the wan interface..

Fender

Well, I am logged in from an external IP address, so the firewall must have internet

Zyxel_Kevin

Hi @Fender, 
What is your firmware version ? Have you upgrade to the latest?
Because I always works fine in my enviroment.  Could we have remote session to check that?
Kindly find your Inbox. Thank you
Kevin

Fender

Hi Kevin, firmware is up to date. V4.72(AAKY.0) Sure we can do a remote session.

Fred_77

Hi @Fender
i got the same error on a ATP due to date/time mismatch between ATP and mobile (daylight saving was the issue).

Fender

Fred_77 thanks!

Fred_77

Glad to have been helpful

Zyxel_Kevin

Hi @Fender,
I' m glad the issue is solved. 
Indeed , as the Fred_77 said the date/time must the same as mobile device.
Thank you
Kevin