How to Fix League of Legends Error Code 003
League of Legends is undoubtedly a famous online multiplayer game, but many users complain that they face League of Legends error code 003 when they try to log in to the LoL servers. If you want to fix League of Legends error 003 on your Windows 10 PC, you have to know the reasons that cause this problem. This covers all the reasons that cause the problem that helps you understand how to fix error code 003 League of Legends on your Windows 10 PC.
How to Fix League of Legends Error Code 003
Several reasons contribute to League of Legends error code 003 on your Windows 10 PC. Here are a few of them.
- 推出的游戏没有 行政权. Hence, your PC does not allow it to patch.
- 那没有 足够的空间 在您的电脑上。修补（包括附加代码以增强游戏性能的行为）需要一些空间。
- 游戏的安装文件和配置文件是 腐败 并且必须更换。
- 游戏客户端是 腐败 或在您的电脑上损坏。
- 过度保护的防病毒程序或防火墙是 闭塞 本场比赛。
- 过时的 Windows 10 operating system and network drivers.
- 有 no stable internet connection to launch and play the game.
- 可能有 配置错误 game installation files.
- 这可能是由于 不当 network settings and DNS address configurations.
Continue reading this article to fix League of Legends error 003.
方法 1：基本故障排除步骤
Firstly let us perform some of basic methods to solve the error.
1A。重新启动电脑
The general trick to resolve all the temporary glitches associated with League of Legends is to restart your computer. You can restart your PC by following the steps as instructed in our guide 6 Ways to Reboot or Restart a Windows 10 Computer.
1B. Monitor Server Uptime
Very often, you may face League of Legends error code 003 due to problems from the server side. To check whether the server is offline or it has some technical problems, follow the below-mentioned steps.
1.访问官方 Riot server status update page.
2. 然后，向下滚动并选择 英雄联盟.
3. 然后，选择您的 区域和语言 继续。
On the next page, you can see any notifications for server-end errors. If there are any, you have to wait until they are resolved.
另请参阅： 修复 Windows 900 上的英雄联盟错误代码 10
1C. Re-sign into Game
您还可以在出现任何错误消息之前退出游戏来修复所讨论的错误。然后您可以等待一段时间或重新启动计算机。然后，按照以下说明重新登录。
1. When you are in the game, press Alt + F4 键.
2。 现在，点击 退出登录.
3.退出 游戏 和 重启你的电脑.
4。 输入您的 证书 and log in to the game again.
1D. Troubleshoot Internet Connection
There may be some network or bandwidth issues that reduce your internet speed and disrupt your connection. Make sure your connection is stable and has good speed. Visit the SPEEDTEST site and run speed test to check your speed. To resolve this error, you must have a connection speed of at least 5-10 MBPS. Follow our guide to troubleshoot network connectivity on Windows 10.
1E。设置正确的日期和时间设置
Incorrect date and time settings in your computer may contribute to League of Legends error code 003 on Windows PC. To sync the date, region, and time settings in your Windows 10 computer, follow the below-listed instructions.
1。 按 Windows + I键 一起开 Windows设置.
2. 现在，选择 时间和语言 如图所示。
3. 接下来，在 约会时间 选项卡，确保两个值 自动设置时间 和 自动设置时区 选项是 开启.
4.然后，点击 立即同步 正如上面所强调的。检查问题是否解决。
另请参阅： 如何删除您的防暴帐户
1F.关闭所有后台进程
如果您的 Windows 10 PC 上有太多后台进程，您将无法轻松访问网络连接，因为所有这些任务都将占用网络共享。而且，RAM消耗会更多，游戏性能会明显变慢。
按照我们的指南如何在 Windows 10 中结束任务来关闭 Windows 10 电脑上的所有其他后台进程。
关闭所有后台进程后，检查英雄联盟中讨论的错误是否已修复。
1G。 更新Windows操作系统
All the bugs and erroneous patches in your computer can be fixed by Windows update. Microsoft releases frequent updates to fix all these problems.
因此，请确保您是否使用 Windows 操作系统的更新版本，并且如果有任何更新正在等待执行，请使用我们的指南如何下载和安装 Windows 10 最新更新
After updating your Windows Operating System, check if you are able to fix League of Legends Error code 003.
1H。更新网络驱动程序
If you want to enjoy any games without any errors, your drivers must be in a perfect state. If the drivers are outdated or faulty, make sure you update them. You can search for the newest releases of drivers from its official websites, or you can update them manually.
Follow our guide on How to Update Network Adapter Drivers on Windows 10 to update your driver and check if you have fixed the discussed issue in LoL.
另请参阅： 修复 Windows 004 中的英雄联盟错误 10
1I.回滚网络驱动程序
Sometimes, the current version of your network drivers may cause conflicts in your game, and in this case, you have to restore previous versions of installed drivers. This process is called 驱动程序回滚 您可以按照我们的指南如何在 Windows 10 上回滚驱动程序，轻松地将计算机驱动程序回滚到之前的状态。
1J。重新安装网络驱动程序
If you do not know how to fix error code 003 League of Legends after updating your network drivers, then reinstall the drivers to fix any incompatibility issues. There are several ways to reinstall drivers on your computer. Yet, you can easily reinstall network adapter drivers as instructed in our guide How to Uninstall and Reinstall Drivers on Windows 10.
After reinstalling network drivers, check if you can access League of Legends without any errors.
1K。 Disable Antivirus Temporarily ( if applicable)
One other possible reason that causes the discussed issue is your security suite. When your antivirus programs detect LoL files and folders as a threat, you will face several conflicts. So, read our guide on How to Disable Antivirus Temporarily on Windows 10 and follow the instructions to disable your antivirus program temporarily on your PC.
After you fix League of Legends error code 003 on your Windows 10 PC, make sure to re-enable the antivirus program since a computer without a security suite is always a threat.
另请参阅： 修复 Avast 阻止英雄联盟 (LOL) 的问题
1L. Disable Windows Defender Firewall
有时，由于某些安全原因，您计算机中的 Windows Defender 防火墙可能会阻止游戏打开。如果您不知道如何禁用 Windows Defender 防火墙，请阅读我们的指南如何禁用 Windows 10 防火墙，并按照给出的说明进行操作。
您可以按照本指南允许或阻止应用程序通过 Windows 防火墙来允许该应用程序。
修复 LoL 中的问题后，请务必再次启用防火墙套件，因为没有防火墙程序的计算机是一种威胁。
方法2：以管理员身份运行英雄联盟
为了避免在 Windows 003 计算机上出现《英雄联盟》错误代码 10，请按照以下说明以管理员身份运行《英雄联盟》。
1.右键单击 英雄联盟 捷径 on the desktop or navigate to the 安装目录 然后右键单击它。
2. 现在，选择 查看房源 选项。
3. 然后，切换到 兼容性 选项卡并选中该框 以管理员身份运行此程序.
4.最后，点击 使用 和 OK 保存更改。
Method 3: Delete LoL_air_client Folder in File Explorer (If Applicable)
修复英雄联盟错误 003 的另一种简单方法是删除文件资源管理器中的特定文件夹。这将删除 Windows 10 中与游戏相关的损坏组件。以下是删除文件夹的几个步骤。
1.点击 Windows + E 键 一起开 档案总管.
2. 现在，导航到以下位置并将其打开。
C:Riot GamesLeague of LegendsRADSprojects
请注意： 您还可以在其他位置找到 lol_air_client 文件夹。请特别注意查找该文件夹。
3. 现在，右键单击 lol_air_client folder 并点击 删除 选项。
删除文件夹后， 重新开始 您的计算机并检查您是否已解决英雄联盟中的问题。
另请参阅： 修复 Windows 10 中的英雄联盟 Directx 错误
方法 4：调整文件主机
If the host file has edited entries of League of Legends, you will face fix League of Legends error 003 issue. Hence, you have to remove the entries to resolve the same. Here are a few instructions to tweak hosts entries.
1。 按 Windows + E 键 一起开 档案总管.
2. 现在，切换到 查看 标签并检查 隐藏项目 框 显示/隐藏 部分。
3. Now, copy and paste the following path into the navigation 径 文件资源管理器。
C：WindowsSystem32driversetc的
4. 现在，选择并右键单击 为了 文件并选择 打开方式 如图所示。
5. 现在，选择 记事本 列表中的选项并单击 OK 如图所示。
6。 现在 为了 文件将在以下位置打开 记事本 如下所示。
7.添加这一行 67.69.196.42 l3cdn.riotgames.com 到文件底部。
8. 现在，单击保存文件 Ctrl+ S keys 在一起。
9。 出口 记事本 并检查您是否已解决所讨论的问题。
方法 5：清除 DNS 缓存和数据
很少有用户建议清除 PC 上的 DNS 缓存和数据可以帮助他们解决尝试加入队列失败的问题。按照指示进行操作。
1.点击 Windows键 和类型 指令 然后，点击 可选.
2. 现在，输入以下内容 命令 逐个。打 回车键 在每个命令之后。
IPCONFIG / FLUSHDNS ipconfig/注册DNS ipconfig / release命令 使用ipconfig / renew 的netsh winsock重置
3. 等待命令执行完毕 重新开始 您的PC。
另请参阅： 修复英雄联盟声音问题
方法6：清理驱动器空间
If your PC does not have any drive space to install any new patches from the game, you cannot fix League of Legends error code 003. Hence, firstly check the drive space and clean the temporary files if necessary. To check the drive space in your Windows 10 PC, check the disk space under 设备和驱动程序 as shown. If they are in red, it indicates the minimum available space.
If there is minimum available space in your computer contributing to the discussed problem, follow our guide 10 Ways to Free Up Hard Disk Space On Windows, which helps you clear all unnecessary files in your computer.
方法7：更改DNS地址
Several users have suggested that switching to Google DNS addresses may help you fix League of Legends error 003. If you launch the game properly and face an error prompt, follow our guide to change the DNS address. This will help you fix all DNS (Domain Name System) problems so you can launch the game without any hustles.
After changing your DNS address, check if you can launch LoL without an error screen.
方法九：使用虚拟专用网络
Still, if you are unable to fix your problem, you can try using Virtual Private Network. It ensures to keep your connection is more private and encrypted. You can change the geographic region with the help of VPN settings so you can fix the discussed issue easily. Although there are so many free VPNs available over the internet, you are advised to use a reliable VPN service to enjoy premium versions and features.
请浏览我们的指南什么是 VPN 及其工作原理？了解有关虚拟私人有限公司的更多信息。
If you are confused about how to set up a VPN on your Windows 10 computer, follow our guide on How to set up a VPN on Windows 10 and implement the same.
设置 VPN 连接后，请检查您是否已解决所讨论的问题。
另请参阅： 修复 Windows 10 中的英雄联盟黑屏
方法9：重置网络设置
Several users have declared that resetting network settings will resolve strange network connection issues. This method will forget all the network configuration settings, saved credentials, and a lot more security software like VPN and antivirus programs.
为此，请按照我们有关如何在 Windows 10 上重置网络设置的指南进行操作
方法八：重新安装游戏
Any misconfigured files in League of Legends will lead to an error code 003 League of Legends issue even if you have followed all the above-discussed methods and updated all the pending actions. So, in this case, you have no other option than to reinstall the game. The game is tied up with your account and when you reinstall the game, you will not lose your progress. Here is how to reinstall League of Legends.
1.点击 Windows键 和类型 应用程序和功能。 然后，点击 可选.
2. 向下滚动并点击 英雄联盟。 然后，选择 卸载.
3. 如果出现提示，请再次单击 卸载.
4。 现在，点击 完成 .
5.点击 Windows键，类型 ％localappdata％ 并点击 可选.
6.双击 Riot Games的 打开文件夹。
7. 现在，右键单击 安装英雄联盟euw 文件夹并选择 删除.
8。 按 Windows键， 类型 ％APPDATA％ 然后按 回车键.
9.删除 英雄联盟 文件夹如前所述。
10.现在， 重新启动电脑.
11.然后，去 英雄联盟 官方网站 下载页面 并点击 免费玩 选项。
12。 输入您的 邮箱 并点击 主页.
13.选择您的 出生日期 in the next step and click on 下一页.
14. Now, fill in the USERNAME, PASSWORD, and CONFIRM PASSWORD 领域。
15. Check the option I agree to the Terms of Service and I have read and acknowledge the Privacy Notice.
16.然后，点击 下一页.
17. 现在，单击 下载 Windows 版 按钮。
18。 点击 downloaded installer file to install and run the game.
19。 点击 Install 安装 提示中的按钮。
20. Finally, relaunch the 游戏 and now you will have a fix for the discussed issue.
请注意： 许多用户和在线论坛报告说，使用 Hextech Repair 工具重新安装游戏有助于修复该错误。访问 Hextech Repair 工具官方网站并下载该程序。它是免费的，因此当您安装并启动该工具时，您将看到重新安装游戏的选项。按照说明解决问题。
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我们希望本指南对您有所帮助并且您可以修复 League of Legends error code 003 on your device. Let us know what you want to learn about next. Also, if you have any queries/suggestions regarding this article, then feel free to drop them in the comments section.
