This is just a possibility, if this is not applicable to you, then by all means ignore it. Oh, i forgot to include my reference.

Thanks a lot, i find it very helpful. I have an Authy app, do you know if i could remove all of the accounts that I've created and then tranfer them to Google Authenticator? Thanks

I would like to be clarified with this, Authy and Google Authenticator has the same function as 2 factor authentication, and what is the advantage of Google Authenticator than Authy?