Fix: MTG Arena Unable to Login Authentication Failed Error

2018’s Magic The Gathering Arena players are recently experiencing a lot of issues or you can say bugs that literally frustrating. Although developers have...

Subodh Gupta

Last updated on April 28, 2023

Subodh Gupta

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Subodh loves to write content whether it may be tech-related or other. After writing on tech blog for a year, he becomes passionate about it. He loves playing games and listening to music. Apart from blogging, he is addictive to the gaming PC builds and smartphone leaks.

Fix: MTG Arena Unable to Login Authentication Failed Error

Usually, whenever there is a server downtime or maintenance issue that appears in the background, the unable to log in or authentication failed error comes into the light. Now, without wasting any more time, let’s jump into the guide below.

1. Check Server Status

You should check out the official MTG Arena server status webpage to ensure there is no downtime or outage at that moment. If in case, there is an issue with the game server then we’ll recommend you to wait for a couple of hours and try again later. Keep in mind that server outages may take additional time than expected in some cases or regions.

We’ll also recommend you to follow the official MTG Arena Twitter handle for further info and updates. If there is no issue with the game server, you can follow the next method.

2. Check for MTG Arena Updates

Whenever developers push an update (patch) for the game, it’s quite expected that the server may get offline due to technical issues or glitches and may take some time to get online or operational again. At that moment, players may experience login issues when they try to attempt connecting to the server.

3. Restart the PC or Mobile

It’s also possible that somehow your computer or mobile device has some issue with the system glitch or cache data that needs to be fixed by simply performing a restart. Just make sure to reboot your PC or mobile to refresh the system manually.

4. Restart Wi-Fi Router

Some of the affected players have also mentioned that there is an issue with the Wi-Fi router and a normal restart may fix the issue with the networking.

5. Power Cycle Wi-Fi Router

In some scenarios, a power cycle to the Wi-Fi router can also fix the problem whatsoever. Make sure to turn off the router and unplug the power cable from the router. Wait for around 30 seconds and then turn on the router to fix the issue.

6. Turn Off Antivirus Program

There are several reports that the default or third-party antivirus program can easily cause multiple issues with the program. Some programs may not run properly or their ongoing connections can also be blocked.

So, if in case, you’re continuously receiving the same error message for a day or more then just disable the antivirus software as well as the Windows Firewall program to check for the issue again. To do this:

lick on the Start menu > Type Control Panel and click on it.
Now, type firewall in the search box > Click on Windows Firewall.
From the left pane, click on Turn Windows Firewall on or off.
Make sure to select Turn off Windows Firewall for the Private, Domain, and Public Network Settings.
Finally, reboot the PC to apply changes, and try checking the issue.

Now, you’ll have to disable the anti-virus protection (Windows Defender) as well by following the steps below:

Head over to the Windows Settings > Privacy and Security.
Now, go to Windows Security > Virus & threat protection.
Click on Manage settings >Then turn off the Real-time Protection option.
Once done, make sure to reboot your PC to apply changes.

7. Reinstall MTG Arena

You can also try uninstalling and reinstalling the game on your PC or mobile device if in case you’re still receiving the same MTG Arena Unable to Login Authentication Failed Error.

8. Contact Support

If none of the methods worked for you then try contacting the MTG Arena Support team for further assistance. Make sure to submit a request for your issue and provide all the required info so that the Wizards of the Coast support team can take the necessary actions on it.

That’s it, guys. We hope this guide was helpful to you. For further queries, you can comment below.

Fix: MTG Arena Unable to Login Authentication Failed Error

1. Check Server Status

2. Check for MTG Arena Updates

3. Restart the PC or Mobile

4. Restart Wi-Fi Router

5. Power Cycle Wi-Fi Router

6. Turn Off Antivirus Program

7. Reinstall MTG Arena

8. Contact Support

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