How to fix the Unable to connect to authentication service League of Legends error

Each League update brings improvements and innovations, but also comes with bugs that make the MOBA gaming experience less fun. After the latest League of Legends 11.1 update, there was an error code that plagued many players around the globe. That is the Unable to connect to the authentication service error.

How to fix the Unable to connect to authentication service error in League of Legends

Since an error message may appear when selecting a champion, at the login screen or in the middle of a match, it is not possible to pinpoint the exact cause behind the problem. However, there are some easy-to-implement solutions that have been shared and in this article, Tamienphi.vn has summarized how to fix the Unable to connect to authentication service League of Legends error.

How to fix the Unable to connect to authentication service League of Legends error

1. Check server status

League of Legends players encountering this issue need to first check the server status for their specific region, as the issue is likely on Riot’s side. You can visit the Riot Games Service Status website to check the League of Legends server status, to rule out the possibility of the Riot Games server being down. Riot usually maintains servers when they need to resolve critical bugs or issues in the game, and sometimes during the update process.

Follow the instructions on the screen, choose the desired language and then select the game for which you want to check server status. In this case, it would be League of Legends.

Visit the Riot Games Service Status website HERE

2. Turn off firewall

The Unable to connect to the authentication service error can often be caused by the Windows Firewall. If you see a League of Legends server in your respective region in good working order, then it’s possible that the problem is with a firewall settings blocking your Internet access. You can disable the trick wall with the following steps:

Step 1: Search Control Panel in Windows Search and choose System and Security> Windows Defender Firewall.

Step 2: Next, you click on the option Turn Windows Defender Firewall on or off located on the left side of the window.

Step 3: Check the option Turn off Windows Defender Firewall and click OK to save changes.

3. Reinstall the game

If the two solutions above didn’t work, then reinstalling the game might be the next ideal option for you to consider. Maybe the update League of Legends 11.1 has corrupted certain files in the game that can be easily fixed by repairing the file or reinstalling League of Legends from scratch. Please uninstall the game and download the latest League of Legends version with the download link provided below.

Link download League of Legends:

=> Link Download League of Legends for Windows

4. Contact customer support

Riot’s customer support is famous for responding quickly and providing the fastest possible fixes. Just by submitting a complaint on Riot’s official website, League of Legends players affected by this bug can get a resolution when another fix fails.

Contact Riot customer support HERE

Above are some solutions for the problem of not logging in League of Legends due to the Unable to connect to authentication service League of Legends error. Try each one in turn to see which one works for your case.

https://thuthuat.taimienphi.vn/sua-loi-unable-to-connect-to-authentication-service-League of Legends-62069n.aspx
Besides, if you encounter a delay error when playing League of Legends, you can also refer to how to fix it here and follow the instructions.

See also: How to reduce delay when playing League of Legends.