今天，由于大流行的爆发，学习和工作(learning and working)的方式已经变成了虚拟的。由于开发人员在开发服务器和功能(server and features)方面做得非常出色，因此每天都有大量用户喜欢使用Zoom。就像(Just)其他视频会议应用程序一样，Zoom也面临一些错误，例如错误代码 5003(error code 5003)。此Zoom 错误代码 5003(Zoom error code 5003)仅发生在桌面应用程序中，不会发生在Zoom的 Web 版本中。如果您也面临相同的错误代码(error code)，那么您来对地方了！我们带来了一个完美的指南，可以帮助您修复Zoom 错误代码 5003(Zoom error code 5003).
如何修复缩放无法连接错误代码 5003(How to Fix Zoom Unable to Connect Error Code 5003)
当您尝试登录Zoom时，您可能会遇到以下提示。确保(Make)您已连接到互联网，并且您与Zoom的连接没有被防火墙或代理(firewall or proxy)阻止。在大多数简单的情况下，Zoom 错误 5003(Zoom error 5003)是由于任何内部服务器错误(server error)、网络相关问题或Zoom无法在您的 PC 中启动造成的。除此之外，还有一些其他原因导致了所讨论的错误。它们如下所列。
- 互联网连接失败。
- 服务器(Server)因维护或其他原因而停机。
- 防火墙或防病毒程序正在阻止Zoom。
- 过时的Zoom 客户端(Zoom client)和过时的网络驱动程序。
- 不兼容的网络适配器(Network Adapter)设置。
- VPN/ Proxy server与Zoom 客户端(Zoom client)不兼容。
初步检查(Preliminary Checks)
当网络连接(internet connectivity)不符合Zoom的要求时，您可能会遇到错误代码 5003(error code 5003)。
- 您可以运行速度测试(Speed test)以了解正确连接所需的最佳网络速度水平。(network speed)您还可以选择新的更快的互联网套餐(faster internet package)并从您的网络提供商(network provider)处购买。
- 如果您使用的是 Wi-Fi 连接，请重新启动路由器或在必要时将其重置。切换到有线连接将是一个明智的选择。
- 服务器关闭时，您可能会遇到Zoom 错误 5003 。(Zoom error 5003)任何技术故障或流量过大都可能导致服务器故障，从而导致Zoom无法连接错误。您可以检查服务器状态(server status)并在社交媒体上浏览一下其他人是否也面临同样的问题。
1. 启动您喜欢的浏览器并导航(browser and navigate)到Zoom 服务状态(Zoom Service Status)页面。
2. 检查您是否看到All Systems Operational消息，如果您看到一些维护活动(maintenance activity)，那么您没有其他机会，只能等待。
3. 如果服务器恢复正常，请尝试重新连接并检查是否遇到错误。
以下是一些有效的故障排除方法，可帮助您修复Zoom 错误 5003(Zoom error 5003)。按照相同的顺序执行方法以获得完美的结果。
方法一：重启缩放(Method 1: Restart Zoom)
重新启动计算机可能会帮助您解决所有类型的临时故障。由于长时间使用设备而出现的许多互联网问题和任何内存问题都可以通过重新启动 PC 来解决。您也可以关闭计算机并在几分钟后重新启动。如果重新启动 PC 无法解决问题，那么您可以尝试重新启动Zoom，如下所述。
1.通过在Windows搜索栏中(search bar.)搜索来启动任务管理器。(Task Manager)
2. 在任务管理器窗口(Task Manager window)中，单击进程(Processes)选项卡。
3.搜索并选择正在后台运行的(background and select)缩放任务，然后选择(Zoom)结束任务(End Task)
4.再次重新启动Zoom 。
方法 2：运行 Internet 连接疑难解答(Method 2: Run Internet Connections Troubleshooter)
如果网络连接(network connection)及其组件存在任何故障或错误，您可能会遇到Zoom无法连接错误，故障排除将帮助您解决相同的问题。请按照以下说明进行操作：
1. 同时按 Windows + I keys 启动 设置(Settings)。
2. 单击 更新和安全(Update & Security) 磁贴，如图所示。
3.从左侧窗格转到 疑难解答 菜单。(Troubleshoot )
4. 选择 Internet 连接(Internet Connections) 并单击 运行疑难解答(Run the troubleshooter) 按钮，如下所示。
5. 选择 解决我的 Internet 连接问题(Troubleshoot my connection to the Internet) 选项。
6.等待疑难解答 发现问题(detect problems)。
7. 按照 屏幕上的说明进行操作(on-screen instructions)。该过程完成后， 重新启动(restart) 您的 PC(your PC)。
另请阅读：(Also Read:) 在Zoom 会议中(Zoom Meeting)显示个人资料图片(Show Profile Picture)而不是视频(Video)
方法 3：将 Zoom 添加为可信站点(Method 3: Add Zoom as Trusted Site )
有时，您的 Windows 10 PC 可能会将某些网站视为不安全的网站，以确保隐私和安全(privacy and security)。要解决此问题，请按照以下说明将Zoom添加为您计算机上的受信任站点。
1. 按Windows 键(Windows key )并键入控制面板(Control Panel )并打开(Open)。
2. 将查看方式(View by )选项设置为大图标(Large icons )，然后单击Internet 选项。(Internet Options.)
3. 选择安全(Security )选项卡并单击受信任的站点(Trusted sites )符号，然后单击站点(Sites )，然后单击确定。( Ok.)
4. 在下一个窗口中，您可以使用Add选项在Add this website to the zone:字段中添加(Add this website to the zone: )https://zoom.us/和其他缩放页面。
注意：(Note:)找不到添加(Add )按钮，检查一下为什么？(check it out why?)
5.关闭(Close )受信任的站点(Trusted sites )窗口并单击Internet 属性(Internet Properties )窗口中的应用(Apply )和确定( OK )以保存更改。
方法 4：禁用 VPN(Method 4: Disable VPN)
尽管出于隐私目的首选VPN ，但它可能会更频繁地降低互联网速度。(internet speed)如果您连接到速度较慢的VPN 服务器(VPN server)，您的连接将非常缓慢，您将面临Zoom 错误 5003(Zoom error 5003)。
1. 退出Zoom并确保从任务管理器中关闭所有(Task Manager)Zoom程序。
2.按Windows按钮并搜索代理(Proxy)并打开(Open)
3. 在这里，关闭以下设置。
- 自动检测设置(Automatically detect settings)
- 使用设置脚本(Use setup script)
- 使用代理服务器(Use a proxy server)
4. 再次启动Google Chrome并尝试是否可以启动Zoom而没有任何错误。
5. 如果没有，请尝试将您的 PC 连接到其他网络，例如Wi-Fi或移动热点(mobile hotspot)。
另请阅读：(Also Read:) 如何拍摄Zoom 会议截图(Zoom Meeting Screenshot)
方法 5：更新缩放(Method 5: Update Zoom)
使用应用程序的更新版本将使您的设备远离任何类型的错误。最新版本将修复所有错误和错误，如果您使用旧版本的Zoom，请按照以下说明进行更新。
1. 启动Zoom并单击配置文件。(Profile.)
2. 选择检查更新(Check for Updates )选项。
3. 确保您收到提示，您是最新的(You are up to date)。如果有任何更新正在等待执行，请按照屏幕上的说明进行更新。
注意：(Note: )您还可以通过选中设置中的自动使 Zoom 桌面客户端保持最新(Automatically keep Zoom desktop client up to date)选项来启用自动(Settings)缩放(Zoom)更新。
方法 6：禁用防病毒软件（暂时）(Method 6: Disable Antivirus (Temporarily))
防病毒保护(Antivirus protection)套件是您的 Windows 10 PC 中急需的program/ application它使您的 PC 远离恶意软件攻击和威胁。然而，一些程序将一些应用程序或站点视为威胁并阻止它们，从而使您无法访问它们的功能。缩放(Zoom)不是一个例外。为了安全起见，请在防病毒程序中添加Zoom作为排除项，或者在极端情况下暂时禁用防病毒程序。
选项 I：白名单放大防病毒软件(Option I: Whitelist Zoom in Antivirus)
1. 转到搜索菜单，键入Avast，然后单击右上角的菜单(right corner)选项(Menu )，如图所示。
注意：(Note:)您可以搜索您正在使用的防病毒软件，在我的情况下它是 avast。
2. 点击设置(Settings)。
3. 在常规选项卡中，(General tab, )切换到阻止和允许的应用程序(Blocked & Allowed apps)选项卡，然后单击允许的应用(ALLOW APP )程序列表字段下的允许应用程序(List of allowed apps)。
4. 单击Zoom对应的添加(ADD )选项，将应用程序添加到白名单。
注意：(Note: )您也可以通过选择SELECT APP PATH选项来浏览应用程序路径。
4. 最后，点击添加(ADD )确认提示，至此，您已经在Avast Whitelist中添加了您的(Avast Whitelist)应用程序或程序(application or program)。
5. 如果您想从Avast 白名单(Avast whitelist)中删除应用程序/程序，请单击主设置窗口中的(Settings window)三点图标(three-dotted icon )。你会在这里看到两个选项。
-
更改允许的功能 -(Change allowed features – )此选项可让您更改在将程序列入白名单时启用的功能。
-
删除 -(Remove – )此选项将从Avast 白名单(Avast whitelist)中删除程序。
6.重新启动您的PC并检查您是否再次遇到错误。尽管如此，如果您没有获得任何修复，请按照以下说明从您的 PC 中禁用该程序。
选项二：禁用防病毒(Option II: Disable Antivirus)
1. 导航到任务栏中的防(Taskbar)病毒图标(Antivirus icon)并右键单击(right-click )它。
2. 现在，选择Avast shields control选项，您可以使用以下选项暂时禁用Avast ：
- 禁用 10 分钟(Disable for 10 minutes)
- 禁用 1 小时(Disable for 1 hour)
- 禁用直到计算机重新启动(Disable until computer is restarted)
- 永久禁用(Disable permanently)
3. 根据您的方便选择选项并确认屏幕上显示的提示。
4. 现在，回到主窗口。在这里，您已关闭Avast的所有屏蔽。要激活设置，请单击TURN ON。
另请阅读：(Also Read:) 如何在 Zoom 上播放 Outburst
方法7：白名单放大防火墙(Method 7: Whitelist Zoom in Firewall)
同样，Windows Defender 防火墙(Windows Defender Firewall)可能会阻止应用程序，导致错误代码 5003(code 5003)。以下是将Zoom in Windows Defender 防火墙(Windows Defender Firewall)列入白名单的几个步骤。
1. 按Windows 键(Windows key )并键入Windows Defender 防火墙(Windows Defender Firewall )并打开。( Open.)
2. 在弹出窗口中，单击 允许应用程序或功能通过 Windows Defender 防火墙(Allow an app or feature through Windows Defender Firewall)。
3. 单击 更改设置(Change settings)。最后，检查缩放(Zoom )以允许通过防火墙。
如果列表中不存在Zoom ，您可以使用允许其他应用程序...(Allow another app… )来浏览您的程序。(Program)
4. 最后，单击 确定(OK) 保存更改。检查您是否已修复Zoom无法连接。
方法 8：重置网络适配器设置(Method 8: Reset Network Adapter Settings)
要解决网络连接(network connectivity)问题，请按照以下说明重置网络适配器(network adapter)设置。
1. 按Windows 键，(Windows key,)键入cmd或命令提示符(command prompt )并以管理员身份运行。(Run as administrator.)
2. 现在，一一键入以下命令(commands)，并在每个命令后按 Enter 键。(Enter key )
ipconfig /flushdns
netsh winsock reset
3.等待(Wait)命令执行，完成后重启电脑( reboot your PC)。
另请阅读：(Also Read:) 修复缩放(Fix Zoom)无法检测到相机
方法 9：更新或重新安装网络驱动程序(Method 9: Update or Reinstall Network Drivers)
PC 中过时或不兼容的网络驱动程序更经常导致Zoom 错误代码 5003(Zoom error code 5003)。尝试将它们更新到最新版本或在必要时重新安装它们。
选项 I：更新驱动程序(Option I: Update Drivers)
1.在Windows 搜索栏中输入(Windows search bar)设备管理器(Device Manager)并打开(Open)。
2. 单击主面板上的 网络适配器(Network adapters) 并双击。
3. 右键单击您的驱动程序(your driver)（例如Intel(R) Dual Band Wireless-AC 3168）并单击更新驱动程序(Update driver)。
4. 单击浏览我的计算机以查找驱动程序(Browse my computer for drivers )以手动查找并安装驱动程序。
5. 单击Browse...按钮选择任何目录，然后单击Next
5A。现在，如果驱动程序没有更新，它们将更新到最新版本。
5B。如果它们已经处于更新阶段，屏幕将显示以下消息，已安装适用于您设备的最佳驱动程序(The best drivers for your device are already installed)。
6. 单击关闭(Close)退出窗口。
选项二：重新安装驱动程序(Option II: Reinstall Drivers)
1. 启动设备管理器(Device Manager )并通过双击展开网络适配器，如(Network adapters )方法 11A 中所述。(Method 11A.)
2. 右键单击驱动程序(driver )并选择卸载设备(Uninstall device)。
3.屏幕上会出现警告提示。(warning prompt)选中“删除此设备的驱动程序软件(Delete the driver software for this device)”复选框，然后单击“(box “)卸载(Uninstall)”确认提示。
4. 访问制造商的网站（例如Intel）手动下载驱动程序。
5. 下载后，双击下载的文件(downloaded file) 并按照给定的说明进行安装。
方法 10：更改 DNS 地址(Method 10: Change DNS Addresses)
一些用户报告说，Zoom 错误代码 5003(Zoom error code 5003)将通过更改您的互联网服务提供商提供的(Internet Service Provider)DNS 地址(DNS address)来修复。您可以使用Google DNS 地址(Google DNS address)来解决这个问题，这里有一些说明来更改您的 PC 的DNS 地址(DNS address)。
1. 同时按下Windows + R keys 运行(Run)对话框。
2.输入ncpa.cpl并按Enter 键(Enter key)。
3. 右键单击您的活动网络适配器( Network adapter)，然后单击属性。(Properties.)
4.将弹出Wi-Fi属性窗口。(Properties window)单击(Click)Internet Protocol Version 4(TCP/IPv4) ，然后单击属性。(Properties.)
注意：(Note:)您也可以双击Internet 协议版本 4(Internet Protocol Version 4) ( TCP/IPv4 ) 打开“属性(Properties)”窗口。
5. 选择使用以下 DNS 服务器(Use the following DNS server) 地址(addresses)选项。然后，分别在首选 DNS 服务器(Preferred DNS server )和备用 DNS 服务器(Alternate DNS server)字段中输入以下值。
8.8.8.8
8.8.4.4
6. 选择退出时验证设置，(Validate settings upon exit)然后单击确定(OK)。
7. 关闭窗口，此方法将修复Forbidden 错误 403(Forbidden error 403)。
另请阅读：(Also Read:) 修复缩放音频(Fix Zoom Audio)不工作(Working)Windows 10
方法 11：重置 LAN 设置(Method 11: Reset LAN Settings)
几个网络连接(network connectivity)问题可能会导致Zoom无法连接错误，您可以通过重置本地网络设置来修复它们，如下所述。
1.通过在Windows 搜索栏中键入来打开(Windows search bar.)控制面板。( Control Panel )
2. 将查看方式(View by )选项设置为类别(Category )并选择网络和 Internet。(Network and Internet.)
3. 单击Internet 选项(Internet Options)。
4. 现在，在Internet 属性(Properties)窗口中，切换到连接(Connections )选项卡并选择LAN 设置(LAN settings)。
5. 选中自动检测设置(Automatically detect settings )框并确保未选中为您的 LAN 使用代理服务器(Use a proxy server for your LAN )框（除非您需要它），然后单击确定(OK )保存更改。
另请阅读：(Also Read:)如何在变焦时关闭我的相机？
方法 12：重新安装 Zoom(Method 12: Reinstall Zoom)
如果这些方法都没有帮助您，请尽可能尝试重新安装软件。重新安装Zoom(Zoom)时，所有设置和配置设置都会刷新，因此您有更多机会解决问题。
1. 按 Windows 键(Windows key)，键入 控制面板 (Control Panel )并单击 打开(Open)。
2. 现在，选择 突出显示的程序和功能 选项。(Programs and Features )
3. 现在，在列表中，单击 缩放 (Zoom )并选择 卸载 (Uninstall )选项。
4. 然后， 在弹出的提示中确认卸载。(Uninstall)然后，在卸载完成后重新启动您的 PC。
5. 从 官网下载(official website)Zoom。
6. 现在，导航到 我的下载 (My downloads )并启动 ZoomInstaller 文件。
7. 按照 屏幕上的说明( on-screen instructions) 在您的 PC 上完成安装。
方法 13：联系 Zoom 支持(Method 13: Contact Zoom Support)
如果这不起作用，请尝试联系Zoom 支持页面(Zoom support page)并检查您是否再次遇到错误 5003。不过，如果您对Zoom 错误 5003(Zoom error 5003)没有任何修复，最好联系您的互联网服务提供商(Internet Service Provider)( ISP ) 寻求帮助。
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我们希望本指南对您有所帮助，您可以修复Zoom Unable to Connect 错误代码 5003( Zoom Unable to Connect Error Code 5003)。让我们知道哪种方法最适合您。此外，如果您对本文有任何疑问/建议，请随时将它们放在评论部分。
Fix Zoom Unable to Connect Error Code 5003
Today, the style of learning and working has turnеd to be virtual due to the pаndemіc outbrеak. A large volume of users enjoys using Zoom evеry single dаy since the dеveloperѕ did a wonderful јob in devеloping the server and features. Just like other video confеrencing applications, Zoom also fаces some errors like error code 5003. This Zoom error code 5003 exclusively happens only in desktop applications and does not oсcur for web versions оf Zoom. If you are also facing the same error code, уou are at the right place! Wе bring a perfect guide that will help you fіx Zoom error code 5003.
How to Fix Zoom Unable to Connect Error Code 5003
You may face the following prompt when you try to log in to Zoom. Make sure you are connected to the internet and your connection to Zoom is not blocked by a firewall or proxy. In most simple cases, Zoom error 5003 is due to any internal server error, network-related issue, or if Zoom fails to launch in your PC. Other than this, some other reasons contribute to the discussed error. They are listed as follows.
- Internet connectivity failure.
- Server down for maintenance or some other reasons.
- Firewall or antivirus program is blocking Zoom.
- Outdated Zoom client and outdated network drivers.
- Incompatible Network Adapter settings.
- VPN/ Proxy server is incompatible with the Zoom client.
Preliminary Checks
When the internet connectivity does not meet the requirements of Zoom, you may face error code 5003.
- You can run a Speed test to know the optimum level of network speed required for the proper connection. You can also prefer a new faster internet package and buy it from your network provider.
- If you are using a Wi-Fi connection, restart your router or reset it if necessary. Switching to a wired connection would be a wise choice.
- You may face Zoom error 5003 when servers are down. Any technical glitch or heavy traffic can lead to server failure thereby throwing Zoom unable to connect error. You can check the server status and have a glance in social media whether others are also facing the same problem.
1. Launch your favorite browser and navigate to Zoom Service Status page.
2. Check whether you see the All Systems Operational message and if you see some maintenance activity, then you have no other chance but to wait.
3. If the servers are back, try to connect again and check if you face the error.
Here are some effective troubleshooting methods that will help you fix Zoom error 5003. Follow the methods in the same order to attain perfect results.
Method 1: Restart Zoom
Restarting your computer might help you resolve all types of temporary glitches. Many internet problems and any memory issues that occur due to long usage of the device can be resolved by restarting the PC. You can alternatively shut down your computer and start it again after a few minutes. If rebooting the PC does not give you a fix, then you can try to restart Zoom as discussed below.
1. Launch Task Manager by searching it in the Windows search bar.
2. In the Task Manager window, click on the Processes tab.
3. Search and select the Zoom tasks that are running in the background and select End Task
4. Relaunch Zoom again.
Method 2: Run Internet Connections Troubleshooter
You may face Zoom unable to connect error if there are any glitches or bugs in the network connection & its components, troubleshooting it will help you resolve the same. Follow the method as instructed below:
1. Press Windows + I keys simultaneously to launch Settings.
2. Click on the Update & Security tile, as shown.
3. Go to Troubleshoot menu from the left pane.
4. Select Internet Connections and click on the Run the troubleshooter button as highlighted below.
5. Choose the Troubleshoot my connection to the Internet option.
6. Wait for the troubleshooter to detect problems.
7. Follow on-screen instructions. Once the process is complete, restart your PC.
Also Read: Show Profile Picture in Zoom Meeting Instead of Video
Method 3: Add Zoom as Trusted Site
Sometimes, your Windows 10 PC may consider some websites as insecure ones to ensure privacy and security. To resolve this, add Zoom as a trusted site on your computer as instructed below.
1. Hit the Windows key and type Control Panel and Open.
2. Set the View by option to Large icons and click on Internet Options.
3. Select the Security tab and click on the Trusted sites symbol followed by Sites and click Ok.
4. In the next window, you can add https://zoom.us/ and other zoom pages in the Add this website to the zone: field by using the Add option.
Note: Cannot find Add button, check it out why?
5. Close the Trusted sites window and click on Apply and OK in the Internet Properties window to save the changes.
Method 4: Disable VPN
Although VPN is preferred for privacy purposes, it may slow down the internet speed more often. If you are connected to a slow VPN server, your connection will be very slow and you will face Zoom error 5003.
1. Exit from Zoom and make sure you close all the Zoom programs from Task Manager.
2. Press the Windows button and search Proxy and Open
3. Here, toggle OFF the following settings.
- Automatically detect settings
- Use setup script
- Use a proxy server
4. Launch Google Chrome again and try if you can launch Zoom without any errors.
5. If not, try connecting your PC to another network like Wi-Fi or a mobile hotspot.
Also Read: How to Take Zoom Meeting Screenshot
Method 5: Update Zoom
Using an updated version of the application will keep your device away from any sort of errors. The latest version will fix all the bugs and errors and if you use an old version of Zoom, update it as instructed below.
1. Launch Zoom and click on the Profile.
2. Select the Check for Updates option.
3. Make sure you receive the prompt, You are up to date. If any updates are pending in action, follow the on-screen instructions to update it.
Note: You can also enable automatic Zoom updates by checking on the Automatically keep Zoom desktop client up to date option in Settings.
Method 6: Disable Antivirus (Temporarily)
Antivirus protection suite is a much-needed program/ application in your Windows 10 PC. It keeps your PC away from malware attacks and threats. Yet, some programs consider a few applications or sites as threats and block them thereby keeping you away from accessing their features. Zoom is not an exclusion. For a safer side, add Zoom as an exclusion in the antivirus program or disable antivirus temporarily if it is an extreme case.
Option I: Whitelist Zoom in Antivirus
1. Go to the search menu, type Avast and click on the Menu option at the top right corner as shown.
Note: You can search the antivirus that you are using in my case it is avast.
2. Click on Settings.
3. In the General tab, switch to the Blocked & Allowed apps tab and click on ALLOW APP under the List of allowed apps field.
4. Click on ADD option corresponding to Zoom to add the application to the whitelist.
Note: You may also browse for the app path by selecting the SELECT APP PATH option.
4. Finally, click on ADD to confirm the prompt, and now, you have added your application or program in Avast Whitelist.
5. If you want to remove the application/program from the Avast whitelist, then click on the three-dotted icon in the main Settings window. You will see two options over here.
-
Change allowed features – This option will let you change the features which you have enabled while whitelisting the program.
-
Remove – This option will remove the program from the Avast whitelist.
6. Reboot your PC and check if you face the error again. Still, if you did not attain any fix disable the program from your PC as instructed below.
Option II: Disable Antivirus
1. Navigate to the Antivirus icon in the Taskbar and right-click on it.
2. Now, select the Avast shields control option, and you can temporarily disable Avast using the below options:
- Disable for 10 minutes
- Disable for 1 hour
- Disable until computer is restarted
- Disable permanently
3. Choose the option according to your convenience and confirm the prompt displayed on the screen.
4. Now, go back to the main window. Here, you have turned off all shields from Avast. To activate the settings, click on TURN ON.
Also Read: How to Play Outburst on Zoom
Method 7: Whitelist Zoom in Firewall
Similarly, Windows Defender Firewall might block the application, leading to error code 5003. Here are a few steps to whitelist Zoom in Windows Defender Firewall.
1. Press the Windows key and type Windows Defender Firewall and Open.
2. In the pop-up window, click on Allow an app or feature through Windows Defender Firewall.
3. Click Change settings. Finally, check for Zoom to allow through the Firewall.
You can use Allow another app… to browse your Program if Zoom does not exist in the list.
4. Finally, click OK to save the changes. Check if you have fixed Zoom unable to connect.
Method 8: Reset Network Adapter Settings
To resolve the network connectivity issues, reset the network adapter settings as instructed below.
1. Press the Windows key, type cmd or command prompt and open it as Run as administrator.
2. Now, type the following commands one by one and hit Enter key after each command.
ipconfig /flushdns
netsh winsock reset
3. Wait for the commands to be executed and reboot your PC once completed.
Also Read: Fix Zoom is Unable to Detect a Camera
Method 9: Update or Reinstall Network Drivers
Outdated or incompatible network drivers in your PC will more often lead to Zoom error code 5003. Try updating them to the latest version or reinstalling them if necessary.
Option I: Update Drivers
1. Type Device Manager in the Windows search bar and Open.
2. Click the Network adapters on the main panel and double click.
3. Right-click on your driver (e.g Intel(R) Dual Band Wireless-AC 3168) and click Update driver.
4. Click on Browse my computer for drivers to locate and install a driver manually.
5. Click on the Browse… button to choose any directory and then click on Next
5A. Now, the drivers will be updated to the latest version if they are not updated.
5B. If they are already in an updated stage, the screen displays the following message, The best drivers for your device are already installed.
6. Click on Close to exit the window.
Option II: Reinstall Drivers
1. Launch the Device Manager and expand Network adapters by double-clicking on it as mentioned in Method 11A.
2. Right-click on the driver and select Uninstall device.
3. A warning prompt will be displayed on the screen. Check the box “Delete the driver software for this device” and confirm the prompt by clicking Uninstall.
4. Visit the manufacturer’s website (e.g. Intel) to download the driver manually.
5. Once downloaded, double-click on the downloaded file and follow the given instructions to install it.
Method 10: Change DNS Addresses
Several users have reported that Zoom error code 5003 will be fixed by changing the DNS address provided by your Internet Service Provider. You may use Google DNS address to tackle the issue and here are a few instructions to change the DNS address of your PC.
1. Launch the Run dialog box by pressing Windows + R keys together.
2. Type ncpa.cpl and hit Enter key.
3. Right-click on your active Network adapter and click on Properties.
4. The Wi-Fi Properties window will pop up. Click on Internet Protocol Version 4(TCP/IPv4) and click on Properties.
Note: You can also double-click on Internet Protocol Version 4(TCP/IPv4) to open the Properties window.
5. Select Use the following DNS server addresses option. Then, enter the below-mentioned values in the field of Preferred DNS server and Alternate DNS server respectively.
8.8.8.8
8.8.4.4
6. Select Validate settings upon exit and click on OK.
7. Close the window, and this method will fix the Forbidden error 403.
Also Read: Fix Zoom Audio Not Working Windows 10
Method 11: Reset LAN Settings
Several network connectivity issues may lead to Zoom unable to connect error, and you can fix them by resetting local network settings as discussed below.
1. Open Control Panel by typing it in the Windows search bar.
2. Set the View by option to Category and select the Network and Internet.
3. Click on Internet Options.
4. Now, in the Internet Properties window, switch to the Connections tab and select LAN settings.
5. Check the box Automatically detect settings and ensure Use a proxy server for your LAN box is unchecked (unless you need it) and click OK to save the changes.
Also Read: How to Turn Off my Camera on Zoom?
Method 12: Reinstall Zoom
If none of the methods have helped you, then try to reinstall the software if possible. All the settings and configurational setup will be refreshed when you reinstall Zoom, and hence there are more chances that you would attain a fix for your problem.
1. Press the Windows key, type Control Panel and click on Open.
2. Now, select the Programs and Features option as highlighted.
3. Now, on the list, click on Zoom and select the Uninstall option.
4. Then, confirm Uninstall in the pop-up prompt. Then, reboot your PC after uninstallation is completed.
5. Download Zoom from the official website.
6. Now, navigate to My downloads and launch the ZoomInstaller file.
7. Follow the on-screen instructions to complete the installation on your PC.
Method 13: Contact Zoom Support
If this doesn’t work, try to contact the Zoom support page and check if you face error 5003 again. Still, if you did not attain any fix for Zoom error 5003, it’s better to contact your Internet Service Provider (ISP) to seek some help.
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We hope that this guide was helpful and you could fix Zoom Unable to Connect Error Code 5003. Let us know which method worked for you the best. Also, if you have any queries/suggestions regarding this article, then feel free to drop them in the comments section.
