<p>The only reason I can think of that would result in the above with a valid OTP seed is invalid OTP settings (but default should work for Google Auth) OR incorrect time on the device OR invalid time (drifted) on the GreenAddress service clock.</p>

<p>I checked for the last one personally and the services clock is fine: in my experience most of the time is time/synchronization on the device.</p>

<p>There is no way of disabling GreenAddress 2FA without 2FA however users that created 2of3 subaccounts can use their two keys to spend/recover and users that enabled email notification with nlocktime can bypass the 2FA after a period of time (by default 90 days, min 1 day, or maximum nlocktime allows)</p>

<p>Thanks</p>

CC BY-SA 3.0
2017-05-25T05:08:49.400Z
There's a way to fiddle with the Google Auth OTP settings?
Geremia
CC BY-SA 3.0
2017-05-25T05:14:21.750Z
When you add a key manually it allows for time or counter based. I think with qrcode it doesn't ask and defaults
Lawrence Nahum
CC BY-SA 3.0
2017-05-25T04:47:16.793Z
2017-05-25T04:47:16.793Z
Lawrence Nahum
<p>According to the section "I lost my two-factor/mobile/etc (email/OTP|Authenticator/etc), what can I do?" of the <a href="https://greenaddress.it/it/faq.html" rel="nofollow noreferrer">GreenAddress FAQ page</a>,</p>

<blockquote>
  <p>You should always have at least two two-factor options enabled.</p>
</blockquote>

<p>Unfortunately, I did not. I only kept the Google Authenticator one enabled.</p>

<blockquote>
  <p>Additionally for OTP/Authenticator you should back up the initial seed number and/or QR code displayed. Provided you keep these backups you can maintain access to your coins even if you lose access to one method for any reason.</p>
</blockquote>

<p>I did keep a backup of the Google Authenticator QR code (is this the same as the "initial seed number"?), but when I use the Google Authenticator or Authy apps to generate a OTP, GreenAddress / GreenBits doesn't recognize it.</p>

<p>Why would this be?</p>

<p>Is there a way to disable GreenAdress 2FA using the mnemonic and/or PIN?</p>

<authentication><two-factor><green-address><greenbits><two-factor-authentication>
Disabling GreenAddress 2FA ∵ Google Authenticator doesn't generate the correct OTPs for it
Geremia
# Disabling GreenAddress 2FA ∵ Google Authenticator doesn't generate the correct OTPs for it

(Asked by: username_0 on 2017-05-25)

According to the section "I lost my two-factor/mobile/etc (email/OTP|Authenticator/etc), what can I do?" of the [GreenAddress FAQ page](https://greenaddress.it/it/faq.html),

> You should always have at least two two-factor options enabled.

Unfortunately, I did not. I only kept the Google Authenticator one enabled.

> Additionally for OTP/Authenticator you should back up the initial seed number and/or QR code displayed. Provided you keep these backups you can maintain access to your coins even if you lose access to one method for any reason.

I did keep a backup of the Google Authenticator QR code (is this the same as the "initial seed number"?), but when I use the Google Authenticator or Authy apps to generate a OTP, GreenAddress / GreenBits doesn't recognize it.

Why would this be?

Is there a way to disable GreenAdress 2FA using the mnemonic and/or PIN?

**Tags:** authentication, two-factor, green-address, greenbits, two-factor-authentication


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## 1 answers

### Answer by username_1 on 2017-05-25. Score: 2 | Accepted answer

The only reason I can think of that would result in the above with a valid OTP seed is invalid OTP settings (but default should work for Google Auth) OR incorrect time on the device OR invalid time (drifted) on the GreenAddress service clock.

I checked for the last one personally and the services clock is fine: in my experience most of the time is time/synchronization on the device.

There is no way of disabling GreenAddress 2FA without 2FA however users that created 2of3 subaccounts can use their two keys to spend/recover and users that enabled email notification with nlocktime can bypass the 2FA after a period of time (by default 90 days, min 1 day, or maximum nlocktime allows)

Thanks

> **Comments:**
> **username_0**: There's a way to fiddle with the Google Auth OTP settings?  
> **username_1**: When you add a key manually it allows for time or counter based. I think with qrcode it doesn't ask and defaults  

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