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Posted by GlenB
Digon

Two Factor Authentication - but multiple mobile devices

My wife and I use TV13 to access each other's computers and attached devices, and I do maintenance on both from one machine. We'd like to add 2FA because - why not - for improved security. But we only use this one account. So that means our 2 instances of the mobile app need to generate the same 2FA key. Is that even possible? If not, what's the alternative?

3 Replies
1 Accepted Solution

Accepted Solutions
Posted by Community Manager
Community Manager
Solution

Re: Two Factor Authentication - but multiple mobile devices

Hi @GlenB

Thanks for your post.

I do not know for sure, but I think, it is not possible to use 2FA for one account from two different devices.

I really recommend to set up a separat account for your wife and share the groups(s) of your account with your wife.

With this, you have the same data in the accounts, but hasslefree and secure login plus you can chat with each other.

I hope this helps a bit,

Esther

3 Replies
Posted by Community Manager
Community Manager
Solution

Re: Two Factor Authentication - but multiple mobile devices

Hi @GlenB

Thanks for your post.

I do not know for sure, but I think, it is not possible to use 2FA for one account from two different devices.

I really recommend to set up a separat account for your wife and share the groups(s) of your account with your wife.

With this, you have the same data in the accounts, but hasslefree and secure login plus you can chat with each other.

I hope this helps a bit,

Esther

Posted by noahcg
Electron

Re: Two Factor Authentication - but multiple mobile devices

I was wondering this too... It IS possible.

I had Google Generator TFA enabled on a Motorola device. I got a new Pixel and wanted to ADD a new authentication device.  

  1. I signed in to the web interface.
  2. I deactivated TFA on web.
  3. I reactivated TFA on web.
  4. When the barcode poped up, I scanned with BOTH devices.
  5. (The same code was being generated on both devices in sync. I did not delete the Motorola Google Authenticator and was concerned that I would have duplicates after scanning the barcode, but Google Authenticator recognized Teamviewer account and did not add another).
  6. I entered the code to Verify TFA.
  7. QED

I hope that helps.

Posted by Community Manager
Community Manager

Re: Two Factor Authentication - but multiple mobile devices

Hi @noahcg,

That’s an interesting finding. Thanks for sharing with us :)

Best, Esther