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Multifactor authentication failed loop

Michal Baranec

When I logged in to my LastPass account today, it requested I reset my MFA. I did and since then I cannot log in to LastPass as a second after it asks me to enter my MFA code it fails and I am repeatedly getting message: Multifactor authentication failed.

Video of the issue:

https://youtu.be/I_FhL-egxwk

Can someone help me please?

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Accepted answers

LastPass Support

Hi@"misoMT"

I apologize for the MFA re-sync issues there.

I will help create a case for you to temporarily disable MFA on your LastPass login flow (after confirming your ID via email). Alternatively, anyone else affected by this can create a case themselves by using the 'Contact' button in the middle of this MFA Lockout Article.

All comments

LastPass Support

Hi@"misoMT"

I apologize for the MFA re-sync issues there.

I will help create a case for you to temporarily disable MFA on your LastPass login flow (after confirming your ID via email). Alternatively, anyone else affected by this can create a case themselves by using the 'Contact' button in the middle of this MFA Lockout Article.

Michal Baranec

Hi,

First of all, I am wondering, why would you set your reply as an accepted solution following posting it. I would not set it as a solution.

I lost access to my LastPass Vault on Monday this week due to a bug in the product. On a login attempt, I entered my email address and master password, it was accepted and I was asked to enter a 2FA code. I have always had access to the Authenticator app with the code, however I was not able to enter it. The prompt to enter it showed for a second or less and then it disappeared with error message: "Multifactor authentication failed. Dismiss."

As a paid customer with premium subscription I was locked out from my account for 5 days!!!

Monday: I realised I couldn't contact the customer service without being able to log in. At least there is an option to leave my email address and I should be contacted by the support team. Immediately after facing the issue I left my email address to be contacted by the support team.
Tuesday:I got a first response from the support team on Tuesday midnight. I responded immediately on Tuesday morning with description of the issue. I got a response back after 9 hours (so far so good). However, the response was linking to a website where I could have disabled Google Authenticator 2FA. This didn't solve my issue asI was not using Google Authenticator, instead I was using Salesforce Authenticator.I would have assumed the Support Team should be able to find this out from my Account. Nevermind, I responded back with this clarification.
Wednesday: I got another response from the support team after 21 hours. They said to be able to disable Salesforce Authenticator on my Account, I need to provide answers to 6 questions to proof Account ownership. Fair enough. I responded and was hoping this would resolve my issue.
Thursday: No response from the support team.
Friday: More than 36 hours and still no response from the support team. I had to set up a fake email address to create a temporary LastPass account to be able to log in and request a call back from the support team. The call took good 30 minutes but they were finally able to disable the 2FA on my Account and I was finally able to re-gain access to my vault. After 5 days.

It ended up well, but this is not how customers paying for premium shall be treated!!!

Mallikharjuna Deva

Few days ago I have received a notifications to reset setup the multifactor authentication which I did. But today I am not able to login into my account using Brave/Chrome extension and also using lastpass.com website. How to get this error removed and I can access my account again?

LastPass Support

Hi@"maddydeva",

Thank you for sharing.

I've noticed your issue has been addressed in an additional post. We're marking this as read.

Thanks.

JasvinderPatyal Patyal

Hello,

I am experiencing the same issue with the Multifactor authentication. I use lastpass authenticator and Microsoft Authenticator and neither is working. I've also tried the SMS method, but no SMS is sent. I've also tried resetting the account, but the same issues occur.

There was also an IP verification that I accepted, but no progress in being able to log on.

Can you help me to resolved this please?

paul

URGENT BUSINESS BLOCKER - Re: Multifactor authentication failed loop

Hello I am having the same problem. Your system forced me to setup a new MFA method, so I did yesterday 10/3/23

This morning I am not able to login, as the MFA window on our app opens/closes very quickly and I cannot enter a code.

paul

Hello I am having the same problem. Your system forced me to setup a new MFA method, so I did yesterday 10/3/23

This morning I am not able to login, as the MFA window on our app opens/closes very quickly and I cannot enter a code.

jeffprodev

Please contact me as I have the same issue. Thanks!

zeeshanhadi

I have been stuck with the same issue for weeks. It’s been frustrating.

The MFA code doesn’t work , the SMS is never received. I cannot login for support and the link you mentioned to set a case is also giving an error.

Please , I need urgent support to get into my account. Can you help.

filip.nicolaisen

I am also constantly encountering this problem.

LastPass Support

@filip.nicolaisen Hello.

If you are using the LastPass Authenticator, did you follow the instructions to create a case via the 'Request help' button within the recovery article as outlined in my previous answer?

filip.nicolaisen

@Ash Cannon,

No, I'm using Microsoft Authenticator. I'm able to reset it, and then it works, but this has happened twice in the last week. And it seems I can only have one active authenticator device at a time, which is not clear from either documentation or the error message.

Anniina Kopsa

Hello,

I'm facing this problem also. It started this morning. My master password is accepted and LastPass asks for authentication code. I'm using Microsoft Authenticator and the code is not accepted. Please help me out so I can serve my customers!

Anniina Kopsa

Okay, today again, Microsoft Authenticator code is not working. I'm sorry but this is so frustrating!

Anniina Kopsa

Phew, it works now. I don't know if someone did something for this but this morning my authentication code worked.

LastPass Support

Microsoft Authenticator offers a deactivation method via email if you cannot log into your LastPass account.

I suggest deactivating MFA, then re-syncing again with your LastPass account.

Brad Sherwood

@misoMTI had the exact same problem shown in your video. I noticed you were using Salesforce Authenticator. In my case, the problem was that LastPass seems to have stopped supporting Salesforce Authenticator (Late August or Early September 2025). On another connection that had not yet expired, I was able to disable 2FA for my LastPass Account (FYI, Support can do this for you too). After disabling, I was able to login on the problem device just fine.

When I went to re-enable 2FA to use Salesforce Authenticator, IT WAS NOT AN OPTION.

It seems that LastPass "silently" stopped supporting Salesforce Authenticator.

LastPass... please bring back Salesforce Authenticator support!

LastPass Support

Hello,

I apologize if this change took you by surprise.

We initially decided to stop offering SalesForce MFA integration options in 2023, and sent an email notification about its eventual depreciation. As of now, that action has come to final fruition, and we do not plan to support this MFA option moving forward.