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Microsoft Authenticator app not working: Quick Fix

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The Microsoft Authenticator app works with many online services, such as Microsoft 365,, OneDrive, Skype, Xbox Live, and more. It can also work with third-party services that support 2FA or MFA, such as Google, Facebook, Twitter, Dropbox, and others.

The app generates a six-digit code that you need to enter when signing in to your account. Alternatively, you can use the app to approve or deny sign-in requests with a simple tap.

Below is a list of some common issues with the Microsoft Authenticator app that people have reported on various forums:

  • The app does not generate verification codes.
  • The app does not send or receive notifications.
  • The app does not scan QR codes.
  • The app does not recognize your fingerprints.

However, sometimes the app might not work as expected and cause frustration. In this article, we’ll examine why the Microsoft Authenticator app is not working and suggest some fixes.

Microsoft Authenticator app not working: Possible causes

Let us first understand the possible causes behind the non-working of the Microsoft Authenticator app.

Cache build-up

Over time cache builds up and can cause disruptions in various functionalities of the app, including the non-working of the app or problems in signing in. Thus, you should clear the cache once in a while.

Network issues

Network issues are the most common reason the Microsoft Authenticator app isn’t working properly. To fix this, check your internet connection or contact your Internet Service Provider regarding details about any internet outage in your area.

You can also switch to WiFi or can upgrade your plan.

Date and time issues

Sometimes the app does not generate the correct verification codes. This problem can occur if the app is not synced with your device’s time and date settings. You will have to tweak your device’s date and time settings to fix this.

Camera issues

If the Microsoft Authenticator app cannot scan QR codes, the app does not have permission to access your device’s camera, or there might be a problem with the QR code itself.

Outdated OS and app

An outdated OS or the app version restricts many functionalities. To continue using the app without any hiccups, update the app and the OS.

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Microsoft Authenticator app not working: Possible fixes

Now that you have understood the possible causes of why the Microsoft Authenticator app is not working let us move to the fixes.

Fix your network

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Make sure that there is no network issue at your end. For that, there are certain things that you must first take care of:

  • First, ensure there isn’t any internet outage in your area. You can ask your Internet Service Provider for the information, or you can visit their website.
  • If there is no outage, it is time to check the hardware to ensure they are not damaged. Check all the hardware associated with the internet connection. That includes your router, modem, power cable, and the main power source, among others. Ensure that all the hardware is undamaged and working properly. If you notice any damage, change it asap.
  • If the hardware is fine, then it is time to check the connections. Make sure that the cables are secured firmly in the proper ports.
  • Sometimes, there is too much distance between the WiFi and the receiving device. Make sure that the distance is less. Or, you can directly connect the internet to your computer as it provides a more stable speed than WiFi.
  • Also, remove any other electronic appliances that might interfere with the WiFi signals. While at it, place the WiFi on a raised platform so that the devices catch signals seamlessly.
  • If many devices are connected to your network, remove them before playing games on the internet, as the devices share the limited bandwidth of the plan. You can also think of upgrading your existing internet plan.

Clear the cache

As explained earlier, cache build-up can be disruptive to the normal functioning of the Microsoft Authenticator app. Clearing the cache can help fix the issue promptly.

To clear the cache, head to Settings > Apps > Microsoft Authenticator > Storage and Cache > Clear cache.

Update the OS and the app

Updating the OS and the app can fix the Microsoft Authenticator not working issue.

To update the Android OS, go to Settings > System > Check for updates.

To update iOS, navigate to General > Software Update > Download and Install.

To update the Microsoft Authenticator app, visite the Google Play Store or Apple App Store and then search for the app. If there is any update available, press the Update button to download it.

Check the date and time of your device

Faulty date and time settings can cause issues with the Microsoft Authenticator app.

If you are an Android user, head to Settings > System > Date and time > turn on toggle next to Set time automatically.

Fix your device’s camera

If your camera app has not been updated in a while, you can update the app. Also, you can use any third-party QR code reader if the default camera isn’t working.

Disable the battery optimization

When you turn on the battery optimisation setting, the Microsoft Authenticator app functions with a few restrictions.

Turning off the battery optimization allows the app to run in the background so that you can get better performance and synchronization.

To turn off the battery optimization, head to Authenricator app > three dot button > Settings > Turn off.

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Kumar Hemant

Deputy Editor at Candid.Technology. Hemant writes at the intersection of tech and culture and has a keen interest in science, social issues and international relations. You can contact him here: [email protected]