This is the same what happen to me. Let me try to help you.. What authenticator did you use?
If you are using the google authenticator try to backup(export) your secret key from authenticator and import it again in google authenticator try it again to coinbase ..
When i was having trouble logging in coinbase or even in other site asking for 2fa code when trying to apply my code im getting error..
So i tried to remove the old and import my backup and its working fine again..
I don't know in mobile authenticator if there is backup option. but you can try..
Or if ever no export option you can try this video https://www.youtube.com/watch?v=czVhlhPJn0k
If you are using the google authenticator try to backup(export) your secret key from authenticator and import it again in google authenticator try it again to coinbase ..
When i was having trouble logging in coinbase or even in other site asking for 2fa code when trying to apply my code im getting error..
So i tried to remove the old and import my backup and its working fine again..
I don't know in mobile authenticator if there is backup option. but you can try..
Or if ever no export option you can try this video https://www.youtube.com/watch?v=czVhlhPJn0k
thanks for you help Bitmaxz, but it's ok now the only thing i have did is go to “Settings” app, verify that your date and time settings are set to update automatically and use network-provided time and time zone. ouf.....
But what i not undestand on blockchaine.info no problems, poloniex no problems, bitstamp no problems, only coinbase....
