FacebookTwitterLinkedIn

Zoom Error Code 5003 | 5 Ways to Fix It

How to Fix Zoom Error Code 5003

If you’re experiencing Error Code 5003 in Zoom, it means that there’s an issue that prevents your computer from connecting to Zoom’s servers. This article will explore the reasons for this error and provide several ways to fix it.

Zoom Error Code 5003

Unable to connect. Make sure you are connected to the internet and your connection to Zoom is not blocked by firewall or proxy. (Error code: 5003)

The meeting has an unexpected error. Error Code: 5003

Error Code 5003 may only appear on the Zoom desktop client, while the browser and mobile versions work normally.

What Causes Error 5003?

When researching this issue, we found that this error occurs due to an issue that prevents establishing a connection between your device and Zoom servers.

Your device may fail to connect to the Zoom servers due to an incorrect or corrupted TCP/IP configuration or if you’re connected to a VPN or proxy server.

Before trying any of our fixes, here are some tips:

Video Instructions on How to Fix Zoom Error Code 5003

Table of Contents:

Check Zoom Service Status

1. Open your web browser.

2. Go to the Zoom Service Status website.

Go to the Zoom Service Status website and check if the services are operational

3. Check if the relevant services are operational. If all services are working properly, then the issue is most likely on your side. In that case, follow the troubleshooting methods listed below.

[Back to Table of Contents]

Method 1. Run the Internet Connections Troubleshooter

Running the Internet connections troubleshooter should help you fix all connection issues that may cause error code 5003.

Right-click Start and click Settings

1. Right-click Start and select Settings.

Select Troubleshoot

2. Scroll down and select Troubleshoot.

Select other troubleshooters

3. Select Other troubleshooters.

Run the Internet connections troubleshooter

4. Run the Internet Connections troubleshooter.

Click Troubleshoot my connection to the Internet

5. Click Troubleshoot my connection to the Internet. The troubleshooter will identify the issues and suggest fixes.

[Back to Table of Contents]

Method 2. Reset TCP/IP Settings and Flush DNS Cache

Resetting your computer’s TCP/IP settings and clearing the DNS cache will reset most of your network settings and should resolve error 5003 in Zoom. This method fixes the error for most users.

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

Type in CMD and hold down Ctrl+Shift+Enter keys to open the elevated Command Prompt

2. In the Run dialog box, type in CMD and hold down Ctrl+Shift+Enter keys to open Command Prompt as an administrator.

3. In the Command Prompt window, type in the commands listed below and press the Enter key after typing in each one.

Run netsh winsock reset and netsh int ip reset commands

  • netsh winsock reset
  • netsh int ip reset

Run ipconfig /release and ipconfig /renew commands

  • ipconfig /release
  • ipconfig /renew

Run ipconfig /flushdns command

  • ipconfig /flushdns

4. After running the commands above, close the Command Prompt and restart your PC.

[Back to Table of Contents]

Method 3. Change DNS Server Address

By changing your computer’s DNS server address you may get a faster, more reliable connection that should help you fix error 5003 in Zoom. Changing the DNS server address has helped many users to fix this error.

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

Type in cnpc.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 your network adapter and click Properties.

Select Internet Protocol Version 4 and click Properties

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

Enter new Preferred and Alternate DNS server addresses

5. Tick Use the following DNS server addresses.

6. In the Preferred DNS server, type in 1.1.1.1

7. In the Alternate DNS server, type in 1.0.0.1

8. Click OK to save settings.

9. Restart your PC.

[Back to Table of Contents]

Method 4. Disable Proxy Server

You may receive error 5003 on Zoom if you use a custom proxy server. Disabling it may fix this error.

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

Type in inetcpl.cpl in Run and click OK

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

Select the Connections tab and click LAN settings

3. Select the Connections tab.

4. Click LAN settings.

Unmark Use a proxy for your LAN and mark Automatically detect settings

5. Unmark the Use a proxy server for your LAN checkbox.

6. Mark the Automatically detect settings checkbox, and click OK.

[Back to Table of Contents]

Method 5. Add Zoom to Windows Defender Firewall Exceptions List

Windows Defender Firewall may block Zoom from connecting to its servers. The guide below will show you how to add Zoom to the firewall’s exceptions list.

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

Type in firewall.cpl in Run and click OK

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

Click Allow an app or feature through Windows Defender Firewall

3. In the Firewall settings window, click Allow an app or feature through Windows Defender Firewall.

Click Change settings

4. In the Allowed apps and features window, click Change settings.

Click Allow another app

5. Click Allow another app.

Click Browse

6. Then, click Browse.

Type in %AppData% in the address box and press Enter

7. Type in %AppData% in the address bar and press Enter.

Access the Zoom folder

8. Go to the Zoom folder.

Access the bin folder

9. Then, then access the bin folder.

Select Zoom and click Open

10. Select Zoom.exe and click Open.

Click Add to add Zoom Meetings

11. Click Add.

Mark Private and Publicj checkboxes for Zoom Mettings and click OK

12. Mark the checkboxes in the Private and Public columns next to Zoom Meetings, and click OK.

Did this article help you fix Zoom Error Code: 5003? Let us know by commenting below.

[Back to Top]

▼ Show Discussion

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. 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.

Our guides are free. However, if you want to support us you can send us a donation.

About PCrisk

PCrisk logo

PCrisk is a cyber security portal, informing Internet users about the latest digital threats. Our content is provided by security experts and professional malware researchers. Read more about us.

Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.