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[FIX] Unexpected Error With Login Session in League of Legends

How to Fix “Unexpected Error With Login Session” in League of Legends

Many League of Legends (LoL) players report getting a “There was an unexpected error with the login session. Please try again” or “We’re unable to log you in because you may be offline” message when they try to log into the game. This article contains several methods to fix this login error.

Unexpected Error With Login Session League of Legends

When you can’t log into League of Legends, you will see one of the following error messages:

There was an unexpected error with the login session. Please try again

We're unable to log you in because you may be offline

What Causes This Error

Some have suggested that this login error is caused by a bug within the game installation. In addition, some say that this login error may occur if there’s something wrong with the region settings. Also, this error may occur when the server is overloaded with traffic.

However, it must be said that this error often occurs due to issues on the League of Legends server side. So, you may have to wait until Riot Games fixes whatever problems they’re having, which will allow you to log into League of Legends.

Before trying any of our fixes, try resetting your Ethernet router. It’s also worth trying logging into LoL with another account, then logging out and logging in with the account you want.

Video on How to Fix “Unexpected Error With Login Session” in League of Legends

Table of Contents:

Method 1. End All League of Legends Processes

1. Hold down Ctrl+Shift+Esc keys to open Task Manager.

2. In the Processes tab, locate all League of Legends and Riot-related processes.

Right-click each League of Legends process and click End task

3. Right-click each process and click End task.

Right-click each Riot process and click End task

Make sure that no League of Legends or Riot processes are running.

4. Launch League of Legends to see if you can log in.

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Method 2. Reset Network Settings

Right-click the Start button and click Settings

1. Right-click Start and select Settings.

Select Network & internet and click Advanced network settings

2. In the left pane, select Network & internet and select Advanced network settings.

Click Network reset

3. Select Network reset.

Click Reset now

4. Click the Reset now button next to Network reset.

Click Yes to confirm network reset

5. Click Yes to confirm network reset.

6. Restart your PC.

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Method 3. Change Your DNS Server Address

1. Hold down Windows+R keys to open Run.

Type in ncpa.cpl in Run and click OK

2. In the Run dialog box, type in ncpa.cpl and click OK.

Right-click your network adapter and click Properties

3. Right-click the network adapter and select Properties.

Select Internet Protocol Version 4 and click Properties

4. Select Internet Protocol Version 4 (TCP/IPv4) and click Properties.

Tick Use the following DNS server addresses

5. Tick the Use the following DNS server addresses option.

6. Enter the following addresses (or your preferred DNS addresses):

  • In the Preferred DNS server, type in 1.1.1.1
  • In the Alternate DNS server, type in 1.0.0.1

7. Click OK to save settings.

8. Restart your PC for the changes to take effect.

If League of Legends doesn’t start, check out our article about this problem here. If it shows you a black screen, read our article about it here.

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About the author:

Rimvydas Iliavicius

Rimvydas is a researcher with over four years of experience in the cybersecurity industry. He attended Kaunas University of Technology and graduated with a Master's degree in Translation and Localization of Technical texts in 2017. His interests in computers and technology led him to become a versatile author in the IT industry. At PCrisk, he's responsible for writing in-depth how-to articles for Microsoft Windows. Contact Rimvydas Iliavicius.

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