How to Fix Pokemon Go Unable to Authenticate Error?


  • Pokemon Go’s latest update has started throwing authentication errors due to various reasons.
  • Make sure your phone is not connected to VPN or jailbroken. Pokemon Go does not support rooted phones.
  • Follow the other solutions outlined in this article to get a quick fix for the authentication error.
Pokemon GO
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Are you an avid Pokemon Go fan who has been unable to log in to the game lately because of the “Pokemon Go Unable to Authenticate” issue? This issue arises for various reasons and does not let you game for a while.


The inability to authenticate your Pokemon Go profile can leave you frustrated. You might be excited to log in to the game and progress ahead but worried that you cannot authenticate the account.

Moreover, if you have made any in-game purchases, you might be more worried about losing access to all those purchases.

But don’t worry! In this article, we have covered some working solutions that can help you fix the authentication error in the game.

Let’s dive in!

What Are the Possible Reasons For the “Pokemon Go Unable to Authenticate” Error?

Here are some of the reasons why Pokemon Go might trigger the authentication error:


Wrong Username or Password: There is a high possibility that you might forget the sign-in process sometimes. You might face an authentication error if you have registered the account with Facebook or Gmail but trying to log in through your email directly.

Using WiFi and Tethering Account: When you often login to the Pokemon Go trainer club and use the WiFi to design the environment, you might see an authentication error. Never try to log in and use the WiFi tethering simultaneously.

A glitch in the Application: In some cases, when the official developers of the game try to update the servers or the application, you might face an authentication error at your end. In such scenarios, you should wait till the developers upgrade the server or complete the maintenance.

Geo Issue: Pokemon Go is not supported in some countries. If you live in a country or location where Pokemon Go isn’t supported, you might see the authentication error.

Rooted Phone: If your phone is rooted, it is highly likely to be hacked. Hackers can easily access your personal information and install unauthorized apps on your phone. For this reason, Pokemon Go is not supported (in most cases) on rooted phones.


Ways to Fix “Pokemon Go Unable to Authenticate” Error

Solution 1: Restart the Device

Restart iPhone - Pokemon Go Unable to Authenticate Error

Restarting the mobile phone can solve most common issues related to the Pokemon Go account. It clears the temporary bugs and glitches associated with the system and gives a fresh start to the device.

Once the device restarts, check whether the authentication error is fixed.

Solution 2: Delete the Game Related Data

To clear the bugs, try to delete the old data related to the game. Here is how you can do that based on the device (iOS or Android).

If you are an Android User:

  • Firstly, open Settings on your device.
  • Now, click Apps and then scroll down until you see the Pokemon Go application.
Delete the Game Related Data - Pokemon Go Unable to Authenticate Error
  • Tap on the game, click Storage, tap on Clear Data, and then press OK.
Delete the Game Related Data - Pokemon Go Unable to Authenticate Error

If you are using iOS:

  • Press and hold the Pokemon Go application till you find the X sign on the top of the application.
  • You will get a popup regarding the app deletion. Select Delete.
Delete the Game Related Data - Pokemon Go Unable to Authenticate Error

This should clear the game data on both Android and iOS. Once done with this process, relaunch the game and see if the authentication error is still popping up. If yes, then go ahead with the next solution.

Solution 3: Check the Server Status

At times the developers of the game might be doing the server maintenance. During that point in time, if you are trying to log in to the game, you might see an authentication error. Check whether the Pokemon Go server is working fine on websites like Downdetector.

Check the Server Status - Pokemon Go Unable to Authenticate Error
Pokemon Go Server Status via Downdetector

Alternatively, you can also check the official Twitter handle of the game, if the developers have shared any important updates.

Solution 4: Disconnect the VPN

If you are using a VPN to connect to the game, there might be chances that Pokemon Go does not support the geo your VPN is connected to.

Hence, to fix the authentication error, you need to either disconnect the VPN or try to change the location to the one that Pokemon Go supports.


Solution 5: Update the Game

Has it been soo long since you updated the game? If yes, there is a high chance that your device does not support the game’s old files, and hence you are facing the authentication error in Pokemon Go.

To fix this issue, navigate to your device’s play store or app store and check if any recent Pokemon Go version is available. If yes, download and install the latest version.

Solution 6: Uninstall and Reinstall the Game

If none of the above solutions seem to work for you, it is time to uninstall the game and then reinstall it. Doing so will remove all the bugs and cache issues associated with the game.

Additional Tip: Use a Password Manager to Remember Your Pokemon Go Account Login Details

If you have difficulty figuring out the passwords, you can use password managers to remember the login credentials. Here are a few password managers that you can try:

Keeper: This is one of the best password managers with a Chrome extension. It saves all your login details, auto form filling, and sign-ups. You can also add 2FA to make the account more secure.


NordPass: If you are looking for a secure password manager that can autosave and autofill the details, then NordPass is the right choice. You can also get easy access to the folders, saving you time to find the files. Interestingly, this app comes with live chat support if you get stuck.

RoboForm: As the name of the app says, this robot can be one of the best auto fillers in the market. You can integrate this with Chrome to log in to your Pokemon Go account. Interestingly, it has more secure options to save the passwords of Tax IDs, passports, etc. So, you can check out these options and find the best way to fill out the Pokemon Go password.


Authentication errors on Pokemon Go might occur due to various reasons. However, by following any of the solutions given above, you will be able to fix the issue quickly.

Further Reading:

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