11 Fixes Zoom “Unable to Connect” Error Code 5003 on Mac & Window

Last Updated on Feb 3, 2022

Getting an error code 5003 can be very frustrating as it prevents the users from joining any meeting or session. Most people face this problem when they try entering a meeting using a join link or switching to a new device or laptop. This problem is primarily linked with the network settings of your device that prevent it from connecting to the zoom server. In addition, this problem may be related to the firewall, proxy, antivirus, or update issues that lead to error 5003.

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To solve this problem, we have done thorough research and put together some simple methods by which the users can solve the problem of error 5003 on their device and connect to any zoom meeting without any issues.

#1. Restart the Zoom Application

Restarting the zoom app on your computer or laptop is one of the easiest ways to fix the problem of error 5003. Like other applications and online services, zoom also faces server downtimes, giving rise to the error code 5003 for many users. So restarting the app can fix this issue as the zoom client reloads all of its resources on restart.

You can follow these simple steps to restart the zoom client on both Windows and Mac devices to eliminate this issue.

Step. 1→ Press the command + space keys together on your keyboard to open the spotlight search.

Step. 2→ In the spotlight search, type in the search bar for Activity Monitor and open it.

Step. 3→ Look for the Zoom app in the search box from the list of currently running programs and click on it.

force-close-all-zoom-services-on-mac
force-close-all-zoom-services-on-mac

Step. 4→ Then, hit the stop button on the menu bar to close the app.

quit-zoom-service-on-mac-using-activity-monitor
quit-zoom-service-on-mac-using-activity-monitor

Once this is done, you need to restart the zoom software on your Mac and see if the problem is fixed.

Step. 1→ Press on the windows icon at the bottom left of your screen or hit the Windows key on your keyboard.

Step. 2→ In the search bar, search for Task Manager and open it.

Step. 3→ From the list of running applications, click on zoom.

Step. 4→ Then, hover at the bottom of the task manager and click on End Process.

This process will shut down the zoom software from your laptop or computer, and once the application is closed, double click on the zoom icon to reopen it.

#2. Check if the zoom servers are online

Most of the time, the error code 5003 arises basically due to Zoom’s server shutdowns which prevent the customers from joining any meeting or session for the time being. So before trying out any complicated solutions or making any unnecessary changes to your device’s settings, check whether the zoom servers are up and running.

check-zoom-status-online
check-zoom-status-online

To monitor the status of the zoom servers, head over to the status.zoom.us. You can check if all the servers are operational or if the zoom faces server issues. In case you see a server issue, wait for some time until the issue is fixed from their side, and then try joining the session again.

#3. Check your Internet Connection

If the zoom servers are up and running and you are still facing the error 5003, you should check your network connection as the error code 5003 arises due to network problems. Weak internet connectivity or slow internet speeds can prevent the users from joining a meeting or session. 

check-your-internet-connection
check-your-internet-connection

To check your internet speed and connectivity, you can visit various sites like fast.com, and many more that give you insight into your internet speed and connection.

#4. Restart your Computer or Laptop

Simply restarting your computer or laptop can solve the issue of error code 5003 in some cases as the device refreshes and reloads its resources which fixes the network problems allowing you to connect to the zoom’s server effectively.

  1. Go to the Apple logo > Restart your Mac

You can restart your laptop or computer by following these simple steps-

Step. 1→ On the taskbar, click on the Windows icon or press the Windows key on your keyboard.

Step. 2→ Then click on the power button at the bottom of the menu.

Step. 3→ After that, select the Restart option from the list of settings available.

This process will automatically restart your device in a few minutes. After the restart is complete, try opening and connecting to the meeting again to check if you can join the meeting without the error 5003.

#5. Temporarily Disable the Antivirus

The antivirus installed on your system often causes some applications to run into problems. For example, your system’s antivirus may be preventing you from connecting to the zoom servers, and thus you get the error code 5003. So disabling the antivirus can fix this problem, and you can disable the antivirus by the easy steps given below.

Step. 1→ On the taskbar, right-click on any empty space.

Step. 2→ Then, click on Task Manager from the list of options available.

Step. 3→ Click on the More Details button at the bottom of the task manager.

Step. 4→ In the header menu at the top of the task manager, click on Startup.

Step. 5→ Scroll down, look for your antivirus and click on it.

Step. 6→ Then click on the disable button at the bottom right corner of the screen. This will prevent your antivirus from automatically starting up once you turn on your computer.

Step. 7→ Restart your computer and try joining the zoom session again.

This process will fix all the network connectivity issues that your antivirus might be causing, and you will be able to interact with the zoom servers without any errors.

#6. Turn off your VPN

Certain VPNs interfere with the network connectivity with zoom and other apps. So turning the VPN off might fix the issue of connecting to the zoom servers. You can disable the VPN by following the steps described below.

Just like WiFi toggle we can turn on or Stop VPN Service on your Mac if installed. Try alternate ways to Turn off/Delete VPN On Mac, According to VPN Service.

  1. Open VPN on your Mac, Disconnect & Stop VPN on Mac.
  2. Uninstall VPN Profile from Mac. Go to the Apple Logo > System Preferences > Network > See any VPN profile installed on Mac, select VPN from left side of window, Click on Minus button to Remove it from your Mac.
  3. Delete VPN app from Mac, Open Finder > Applications > Find VPN app name, Right click on app icon > Move to bin.
  4. Stop VPN service from Activity Monitor:- Open Activity Monitor on Mac > Search VPN name and See the Running Backgroud provess, Select the Process and Stop VPN Service.
  5. Try in Safe mode on Mac. to fix the internal software issue on Mac Startup in Safe mode.
  6. That’s it.
  • Step. 1→ On your keyboard the Windows key, search for “settings,” and open it.
  • Step. 2→ Navigate to the Network and Internet settings. Then, from the list of options in the menu on the left-hand side of your screen, click on VPN.
  • Step. 3→ If the VPN is turned ON, toggle it to Turn OFF.
  • Step. 4→ Restart the zoom app and try joining the session again.

This method will fix all the connection problems caused due to the VPN hindering the online services.

#7. Disable the Firewall on your Device – Windows

Ensure that the Zoom software can bypass your device’s firewall, be it a Windows device or a MacBook, to have a stable connection with the zoom server. To permit the Zoom app to bypass the firewall settings, you need to follow these steps.

Step. 1→ Open “Settings” by searching it in the Start Menu search bar.

Step. 2→ Look for an option labeled as Windows Defender Firewall and open it.

Step. 3→ Click on Allowed Apps.

Step. 4→ Then scroll down and look for the zoom app and click on it.

Step. 5→ Select the setting Allow On Firewall and save it.

By properly completing this process, the firewall will no longer hinder the zoom app and cause connectivity problems leading to error code 5003.

#8. Disable the Proxy Servers

Similar to the Windows Firewall, the Proxy server also acts as an added layer of security between the internet and your system. So the settings of your Proxy server may be a reason for the error 5003 which prevents you from connecting to a meeting.

Therefore, it is essential to disable the Proxy server to prevent such problems. To disable it, take note of the following ways.

Step. 1→ On your keyboard, press on the Windows + I keys and open the Windows Settings Menu.

Step. 2→ Then click on the Network and Internet option and open the Network Settings.

Step. 3→ From the list of settings, select Proxy.

Step. 4→ Check if the “Use a Proxy Server” setting is turned off. If it is not disabled, then you can turn it off by toggling the setting.

Now, restart your zoom client and try joining the meeting again to see if the error code 5003 still persists.

#9. Reinstall the Network Drivers of your System

The error code 5003 pops up due to the network issues caused by the zoom server, your system, or the internet connection. The bugs in your system’s network driver may restrict you from joining any meeting on zoom. It would help if you reinstalled the network drivers to solve this problem, which you can do by following these basic steps.

Step. 1→ On your keyboard, tap on the Windows key and search for the Device Manager to open it.

Step. 2→ Look for the setting labeled as Network Adapters and click on it.

Step. 3→ From the drop-down menu, select your current Network Adapter and right-click on it.

Step. 4→ Click on Uninstall Device.

These steps will uninstall the network drivers from your system, and to reinstall them, you will have to restart your device, and the drivers will automatically get installed in your system. Then open the zoom software and click on the join button to see if the error 5003 is still there.

#10. Changing to a Different DNS Server

To break through the network limitations of your device, you can change to a faster and better public DNS server that offers better internet speeds and solves various connectivity issues. To change your DNS server, go through the following steps.

Step. 1→ Go to the Apple logo from the top menu > System Preferences.

Step. 2→ Find network Option. Select Wi-Fi > Choose Advanced Option.

Step. 3→ Then press on the Network and Internet settings followed by the Network and sharing center.

Step. 4→ After that, click on DNS Tab > Enter these two Proxie DNS Address  1.1.1.1 and 1.0.0.1

add-proxie-dns-address-on-mac-network-settings
add-proxy-DNS-address-on-mac-network-settings

Step. 5→ Then, Click on Ok to apply changes. That’s it.

Restart your Mac, and check the connectivity issue is fixed or not.

Step. 1→ Open the Run utility by pressing the Windows + R keys on your keyboard.

Step. 2→ In the Run utility, type in Control and press enter to open the control panel.

Step. 3→ Then press on the Network and Internet settings followed by the Network and sharing center.

Step. 4→ After that, click on the setting labeled as Change Adapter Settings from the menu on the left-hand side of the screen.

Step. 5→ Then, open the properties of your current network connection by right-clicking on it.

Step. 6→ Hover down until you find the Internet protocol version 4 (TCP/IPv4) menu and select it, followed by clicking on the Properties button.

Step. 7→ After that, click on Use the following DNS server addresses and enter 1.1.1.1 and 1.0.0.1 in the first and second rows, respectively.

Step. 8→ Click on OK to confirm the changes to your DNS server.

Open the zoom app again and connect to any session to check whether you are still getting the error code 5003.

#11. Updating the Zoom Application

Sometimes having an older zoom version causes problems like the error code 5003. So you must check for the updates and install them when prompted by the software. All the updates come with major and minor bug fixes that restrict the bugs from causing any problems with the client, your system, and the internet. So go to the settings of your Zoom app in your Windows and Mac and check for the latest updates to download and install them.

check-for-updates-zoom-app-on-mac-or-pc
check-for-updates-zoom-app-on-mac-or-pc

On Mac or PC: Open the Zoom app on your Mac/PC > Tap on Profile > Check for Updates.

The error code 5003 can prove to be a pain in your head as it restricts the users from getting access to any meetings or sessions. Through this publication, we hope that you will be able to resolve your problem using the various methods prescribed by us. So we recommend you go through all the methods and try them at least once to fix the error code 5003.

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