League of Legends – Unable to Connect to Authentication Service?

If you’re playing League of Legends, you may have run into the “Unable to connect to authentication service” error. This error can appear at different times during a session, including logging into the game, queuing up for a match, and during an ongoing match. To fix this error, you can first try to troubleshoot your own internet connection. The game can be very intense, and it’s easy to lose connection to the game server. A quick reconnect should resolve the problem.

Error message: ‘Unable to connect to authentication service’

If your League of Legends client cannot connect to the authentication service, there are a couple of things you can do to fix this issue. First, you can try to disable your firewall. Then, you can try changing your DNS server address. If these steps don’t work, you can try to reinstall the game.

There are a few reasons why you might get the error “Unable to connect to authentication service”. First of all, it may be caused by a faulty internet connection or a disrupted firewall. In any case, you may be able to solve the problem by restarting your computer or switching off your Internet connection. If this method does not work, you may want to contact Riot Games and report the issue to them.

If none of these work, you may need to restart your PC or restart League of Legends. This will clear out any memory cache and close any background processes. If you have poor internet connectivity, it might also be the cause of your League of Legends cannot connect to authentication service. To fix this, turn off your Wi-Fi network and wait for about two minutes. This should improve your PC’s performance and ensure that you can connect to the game again.

The error is a common issue among League of Legends players. First, make sure that your internet connection is stable. If that fails, you may want to try switching to a wired connection instead of wireless. Another option is to switch browsers. Sometimes, certain browsers are incompatible with League of Legends and can lead to this error. Restarting your router may also help.


If you’re having trouble playing League of Legends on your computer, there are several simple steps that you can take to fix the issue. First, you should locate the game’s installation directory. Next, right-click on the LoL program and choose Run as Administrator. Finally, you should close the game by clicking the gear icon next to the X on your task bar. Next, go to the Control Panel and click the League of Legends game. In the next window, click the Uninstall option on the right-hand side. Follow the instructions on-screen to complete the removal process. If this doesn’t work, you can download the latest version of the game from the Riot website.

One common cause of League of Legends connection issues is outdated network adapters. To fix this, open Control Panel and change the view to Small icons. In the Network adapters tab, click the Network adapters icon. Once you’ve done this, right-click on the adapter and choose Update Drivers. If this doesn’t work, try using another DNS server.

Another common problem is a problem with the graphics driver. Activating the Windows firewall may help. Alternatively, you may need to reinstall your graphics drivers. If this doesn’t work, you can also try uninstalling and reinstalling the game using free software. Another common problem with outdated drivers is black screens during gaming. You can find the latest drivers for your GPU on the manufacturer’s website. However, you should avoid installing them manually because you risk installing the wrong ones.