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Guide to Fix Zoom Error Code 5003

Guide to Fix Zoom Error Code 5003

Baffled by the issue of Zoom error code 5003 on mobile and on the computer that does not let you connect? Here’s why the issue seems to occur in the first place, and how you can resolve the Zoom error code 5003 on Android and iOS the easy way.

Zoom error code 5003 reveals a failed connection between your device and the Zoom servers. To fix the issue, you should start by uninstalling the Zoom app and reinstalling the latest version. Additionally, check your computer’s firewall and ensure the app has been allowed in the firewall settings.

Despite the app being relatively reliable, it is known to encounter an error or two at times. Let’s explore why the problem occurs and the troubleshooting steps to take to fix Zoom error code 5003.

Why Does the Zoom Error Code 5003 in Mobile Occur?

Listed among the most common Zoom errors you could encounter, error 5003 is experienced by users trying to log into the Zoom app. In most cases, the error is related to an internal server issue, where the Zoom web services either fail to launch or the server status is timed out. On desktops and laptops, the Zoom 5003 error code pops up due to network setting issues, while mobile users have also been victims of the issue due to antivirus or VPN proxy being connected.

How to Fix Zoom Error Code 5003 Android, iOS, and PC

Since it is among the errors that are on the top of the list in the Zoom Help Center portal, you can expect it to be a fairly common one. The error code is being received by Zoom users not just on the desktop client, but Android and iOS users as well. There are a number of different fixes for the Zoom 5003 error code, and one definitive solution does not seem to work on all of them.

Fix #1 – Close and Restart Zoom

In most cases, the very basic solution of shutting down and restarting an app can solve the most complicated errors for gadgets, and the Zoom app is no different. If you encounter the error code 5003 pop up, all you need to do is force close the app, and open it again to see if the issue is resolved. On your Windows computer, you can launch the Task Manager and select End Process for the Zoom app.

install zoom app

Here’s how you force close the Zoom app on Android:

  1. Press and hold the Zoom app icon and select App Info button.
  2. Tap on the Force Stop button to close the app from running in the background.
  3. Launch the Zoom app again to see if the issue has been resolved.

Fix #2 – Reboot the Device

In some cases, it isn’t the Zoom app that is faltering, but the system that you’re running the app on. The easiest way around the Zoom error code 5003 is by rebooting the system, which should most likely flush out all issues related to it.

reboot zoom
  1. On the Windows PC, click on the Windows icon, press the Power button and select Restart from the menu.
  2. On Android and iOS devices, press and hold the Power button until the menu appears, and then select Restart from the list to continue.

Fix #3 – Check Zoom Server Status

Although Zoom services are almost always operational to manage the massive influx of users it entertains each day, the server can fall short in some cases. Before you begin to blame your mobile or computer for everything that is wrong with the app, you might way to take a look at the Zoom server status too:

is zoom down?
  1. Open a web browser and head on to the Zoom Cloud Service Status
  2. Browse through the list of operations and services to confirm that all are “Operational” in green.
  3. If any of the fields are in orange or red, it could indicate a server-side issue, for which the only fix would be to wait it out.

Fix #4 – Check Firewall Settings

Since the Zoom app requires internet and the computer’s hardware to work for video and voice calling, you will need to let it pass through the Windows Firewall.

firewall settings
  1. Click on the Windows icon and search for the Windows Security
  2. Find Firewall & network protection and select Allow app through the firewall from the options.
  3. Select Change settings and find the Zoom Video Conference app from the list.
  4. Tick the checkbox next to Public and Private, and then press OK to confirm.

Fix #5 – Disable Antivirus Protection

Some users have reported that the Zoom error code 5003 in mobile and Windows does seem to pop up at times due to the Windows Security feature, as well as third-party apps that restrict incoming and outgoing traffic.

  1. Click on the Windows icon and search for the Windows Security
  2. Find Virus & threat protection and click on the Manage settings option under it.
  3. Disable the toggle switch right next to Real-time protection and continue.

Fix # 6 – Disable the VPN

vpn connection

The Zoom error 5003 Android seems to pop up more often when the users are simultaneously employing a VPN service provider. Changing the IP address of the network directly affects the ability of Zoom to connect to the network servers, which causes the Zoom error to pop up not just on mobile devices, but on computers as well. If you are indeed using a VPN service, we recommend you turn off the VPN, restart the Zoom app and then try to see if the issue is resolved.

Final Words

It can be quite a nuisance to be blocked by the Zoom error code 5003 every time you try to get together with a friend online, or even worse, prepping for an important business meeting. We hope that the solutions we have listed above will help you figure out the problem and get to the root of the problem.

If you also stumbled across a solution that we’ve missed out on the list above, do share it in the comments section down below.


  • Michael Stokes

    Over 10 years of experience working as a technical support engineer. Highly skilled in fixing any technical issue, including app configuration and account setup, gaming errors, television problems, and any other electronics-related issue. You can find out more about him at

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