On the social forum recently the LOL players are complaining about getting League of Legends Error 1B.
One of the users shares his experience on Reddit.
According to Riot Games, this error occurs when there is an issue with your internet or the ISP is restricting your access to the League of Legends server.
Don’t worry about it!
The CPU Guide brings you the best working solution to solve League of Legends Error 1B.
Special League of Legends Tracks: FOR YOU
Solution 1: Restart the Game to fix League of Legends Error 1B
Whenever you encounter League of Legends Error 1B and any game bug, you should restart the game before trying any further solutions.
Restarting the game will eliminate any temporary error occurring due to the old cookies and cache or the system’s other software clashing with your gaming software.
All of these errors will be eradicated after a simple restart of the PC or any other platform you use.
Read More: Valorant Error code VAN9002 Control Flow Guard
Solution 2: Check the Server Status
Sometimes the League of Legends servers are down for maintenance or have any technical issues.
So, it is better to check the server status before applying any further solutions.
To check the server status of the LOL game, follow the steps mentioned down below:
- Go Riot server-status official website
- The homepage will open
- Now select your game
- League Of Legends server status page will open
- Now select your region
- And check if there is a problem or not.

Solution 3: Keep your PC Updated to Fix League of Legends Error 1B
Sometimes your outdated PC is the main cause of the Outdated WiFi Drivers on Windows 11.
Outdated drivers in your PC or your current Windows version are not able to support the new connectivity parameter of your internet.
As you update your Windows, all the drivers are updated too and this will fix the League of Legends Error 1B.
So, here is how you can do update your PC:
- Click on the Windows icon
- Click on the Settings icon
- A new window will pop up
- Select Windows Update from the left menu
- The new window will pop up
- Then click on Check for updates
- If there is any update, it will start updating the PC
- After the updating is done check if the “there was an error connecting to the platform League of legends error 1B” is fixed or not.
Read More: Valorant Error Code 7 “Couldn’t connect to session service” Easy Guide
Solution 4: Update WiFi Drivers on Windows 11 via Windows update
Updating the Wifi drivers will help you to have a better and more stable internet experience.
This will fix the League of Legends Error 1B and you will be able to play LOL without getting any interruption.
Here is how you can update the WiFi driver:
If you are unable to update your drivers through Windows Update, then you can try updating the WiFi Drivers through Device Manager.
- Click on the Windows icon
- Click on the Settings icon
- A new window will pop up
- Select Windows Update from the left menu
- The new window will pop up
- Now select Advanced options
- Click on Optional updates
- A new window will open
- Click on the drop-down button for Driver updates
- Now select your desired drivers and check in the box
- Now press the Download & Install button and Error Code 1B League of Legends will be fixed.
Solution 5: Close Unwanted Programs on Windows 11/10
If the above solution didn’t work, then closing unwanted programs will help you to eliminate the League of Legends error 1B.
If there are too many programs running in the background that are using too much internet/RAM/Disk and causing the “League of Legends Client Not starting” error.
So, let’s close unwanted programs:
- Press Ctrl + Shift + ESC keys to open Task Manager
- Now check which program is using more Network
- Right-click on that program and select End task
- And check if the “League of Legends Client Won’t Open” is solved or not.
If the error persists then proceed to the next solution.
Solution 6: Power Cycle your Wi-Fi Router
If the above solution didn’t work, this solution has worked for many users to fix the League of Legends Error 1B.
All you need to do is follow these steps:
- Turn off your router completely by taking out the power cable from the power switch
- Now leave it for 5 to 10 minutes and then plug it back in
- And check if the League of Legends Error 1B is solved.
Best Routers To Buy
Budget Router
TP-Link WiFi 6 AX3000 Smart WiFi Router
![Fortnite Error 14 [Ultimate Fixes Guide] 4 Fortnite Error 14 [Ultimate Fixes Guide]](https://www.thecpuguide.com/wp-content/uploads/2022/04/TP-Link-WiFi-6-AX3000-Smart-WiFi-Router-.jpg)
Super Router
TP-Link Archer AX11000 Tri-Band Wi-Fi 6 Router
![Fortnite Error 14 [Ultimate Fixes Guide] 5 Fortnite Error 14 [Ultimate Fixes Guide]](https://www.thecpuguide.com/wp-content/uploads/2022/04/TP-Link-Archer-AX11000-Tri-Band-Wi-Fi-6-Router.jpg)
Make sure you restart those devices which are affected in the process for an accurate fix.
if the error persists then proceed to the next solution to fix League of Legends Error 1B.
Solution 7: Update Your Router’s Firmware
Sometimes an outdated router software leads to a drop in internet connection resulting in League of Legends Error 1B.
So, it’s best to update your router firmware by consulting the company which is providing you with the internet
OR
Here’s what you can do is:
- Go to your router login page.
- Sign in and look for the software update option.
- And then follow on-screen instructions to complete the process.
Solution 8: Clear DNS Cache and Data
Since clearing the DNS cache removes all the entries and forces your computer to repopulate those addresses the next time you try accessing those websites.
This won’t affect performance and will fix “League of Legends Client Not Opening“ and cause LOL error 1b.
- Click on the Windows start icon on the bottom left corner.
- Then press the Windows key + R.
- The Run box will appear. Type cmd.exe, and click on OK.
- Then on the cmd window, enter the following commands: (Note: Type the following commands, and hit Enter after every command, without the quotation marks (” “) )
- “ipconfig/flushdns”
- “ipconfig/registerdns”
- “ipconfig/release”
- “ipconfig/renew”
- “netsh winsock reset“
- Now restart your PC and check if LOL Error 1b is fixed.
Solution 9: Reinstall the League of the Legends
Reinstalling the LOL game will definitely help to get rid of the League of Legends Error 1B .
Reinstalling the Game helps many players.
But, we recommend trying the above solutions before uninstalling the app.
Here is how you uninstall the LOL on a PC:
- Press Windows +S to open the search dialogue
- Type the control panel and choose the matching option
- After that set the “View by” as the “Large Icons” option on the right top corner
- Select the Programs and Features then find the “League of the Legends“
- Right-click on the LOL then Uninstall option pop select the option and follow the process
- Now your game is uninstalled successfully.
- Now you can go to the League of Legends website to download the latest version.
Hope all of the above solutions help you to solve the League of Legends error 1B issue.
If you have any queries or suggestions, feel free to share your experience with us in the comments section down below or you can reach us on our social handles.
FAQ
How do I fix error code 1b?
Here is how you can fix error code 004 on League of Legends:
1. Restart the Game
2. Check the Server Status
3. Keep your PC Updated
4. Update WiFi Drivers
5. Close Unwanted Programs on Windows 11/10
What is an error 1b on LOL?
According to Riot Games, this error occurs when there is an issue with your internet or the ISP is restricting your access to the League of Legends server.