Zoom blocked by firewall or proxy Mac

Getting to the bottom of an application error can often take time. It's great you've already gone through some troubleshooting steps (helps those trying to assist you!). I'd recommend however pasting the exact error message zoom is giving into your question. Usually when an application errors out, there is also an error code. This can greatly help in diagnosing your issue. Here are some of my suggestions on what you could do next based on the information provided:

1. Restart your computer

I am assuming you have already done this, but half my problems on computers have been solved by restarting. I cannot tell you how many times I've told people to simply restart and everything is fixed. If you need any help on this, I found the Apple help page for this.

2. Permissions and Other Settings

You have probably already seen this page by AppleToolBox which outlines a bunch of permissions and other network settings you can change (alternatively look take a look here). In fact, it looks like you've already gone through most of it. It's worth double checking however as sometimes in these situations I've realized I forgot a step after hours of troubleshooting.

The issue could also lie in the zoom link you are using. Which application does it error from? All applications or just a few? Have you tried manually inputting the zoom ID into zoom and joining that way? For instance:

https://zoom.us/j/5551112222

The 5551112222 is the zoom ID that you could enter into Zoom. To enter this, click the Join button in the Zoom application. Sometimes there is also a password. This is sometimes in the link following the ID.

Finally, perhaps try different Zoom links. You could create Zoom meeting yourself and join your own meeting by pasting the link into the application you're having trouble with and then clicking it.

4. Update your macOS version

You mention you are running macOS Catalina. The current version is Big Sur. This could possibly be part of the problem. Theoretically, Zoom should support Catalina as they state Zoom works all the way back to macOS 10.14. There is always the chance they haven't fixed something on an older version.

Conclusion

Best of luck figuring out your problem. I would recommend seeing if you can find the error code zoom is giving you. Post it here as that will assist people helping you. I found a Zoom page with common error codes. The post here also outlines other resources to help you on your way. As a last resort, you could also contact Zoom Support.

Zoom generally works well and makes video conferencing efficient and straightforward. However, issues do occur sometimes. Software developers use error codes to let the end-user know what’s wrong with their system. Unfortunately, it can be difficult to decipher an error code and find a solution.

Zoom blocked by firewall or proxy Mac

This article will cover the 5003 Zoom error code and walk you through fixing the underlying problem. We’ll also cover some other common codes you’ll encounter using Zoom.

What is the 5003 Error Code on Zoom?

If you see an error code 5003, there’s a problem with establishing a connection with the Zoom servers. Essentially, your Zoom app isn’t communicating properly with the Zoom servers. There could be several reasons why that’s happening.

It could be a firewall issue, an antivirus software block, or you might have a corrupt wireless driver. In this article, we’ll explain how to fix these issues.

Reinstall Zoom

Our first stop will be a fresh install of the Zoom app. Whether you’re on your phone, PC, or Mac, you can quickly reinstall Zoom. The process is simple enough for mobile devices because all you need to do is long-press the Zoom app icon and tap Uninstall on both iOS and Android devices.

But, if you’re using a Mac or PC, you may need a little help. That’s what we’ll cover first.

If you’re using a macOS device, follow these steps:

  1. Click on the Finder in your Mac’s dock.
    Zoom blocked by firewall or proxy Mac
  2. Click on Applications in the left-hand menu.
    Zoom blocked by firewall or proxy Mac
  3. Right-click on the Zoom app.
    Zoom blocked by firewall or proxy Mac
  4. Click on Move to Trash.
    Zoom blocked by firewall or proxy Mac

Now, you can reinstall Zoom from this link.

Zoom blocked by firewall or proxy Mac

Upon installation, sign in and test Zoom. If you still see the 5003 error code try using a web browser or keep reading for more helpful tips.

If you’re using a PC, follow these steps to uninstall the Zoom desktop app:

  1. Click on the Search bar in the lower left corner. Then, type Zoom.
    Zoom blocked by firewall or proxy Mac
  2. Click the down arrow icon to the right of Zoom to reveal more selections.
    Zoom blocked by firewall or proxy Mac
  3. Click Uninstall.
    Zoom blocked by firewall or proxy Mac

Confirm that you’d like to uninstall Zoom and redownload it using this link.

Zoom blocked by firewall or proxy Mac

After installing Zoom you can try your meeting again. If the 5003 error appears, try using a web browser, or keep reading for more help.

Network Firewall or Proxy

If you’re trying to connect to Zoom, but you’re on a network that has a firewall or proxy, you might see the error code 5003 appear. That could happen if you’re using your computer or mobile device at a university or in some other organization that has network access restrictions.

In that case, you should contact the network administrator so they can check the firewall and proxy settings.

If you need to configure the network firewall, Zoom has a table of protocols and destinations that you can view on their webpage. Also, Zoom recommends that you whitelist the zoom.us page from all the proxy or SSL inspections.

Zoom blocked by firewall or proxy Mac

If you really need to use Zoom and don’t have time to wait on an administrator or can’t figure out the firewall or proxy issue, try switching to a mobile network (mobile hotspot or cellular data). You can also try another device to get you back up and running for the time.

AVG Issue

If you’re using AVG antivirus on your device, you might see the error code 5003 when trying to connect to Zoom. In that case, your best option is to disable AVG temporarily. Once the Zoom meeting is over, you can restore the AVG settings. Here’s what you need to do:

  1. Right-click on AVG on your computer screen.
  2. When a menu pops up, select the green toggle button that says, “Protection is ON.”
  3. When prompted to confirm the selection, click “Yes.”

You will see the toggle button turn red, and it will say, “Off.” That means that every AVG antivirus feature is disabled. So, ensure you don’t leave your computer exposed and vulnerable for too long. Also, the antivirus protection will automatically turn on when you reboot your computer.

Zoom blocked by firewall or proxy Mac

Corrupted Wireless Driver

There is a third potential reason for getting the error code 5003. Some Zoom users have reported that a corrupted wireless driver was preventing them from connecting to Zoom. If that’s the case, the problem won’t go away on its own. What you need to do is reinstall the wireless driver on your computer.

We’ll show you how to do that on Windows operating system. The first thing you should do is uninstall the driver for your Wi-Fi adapter. Here’s what you should do:

  1. Press the Windows key + X and then select “Device Manager.”
  2. Next, find your wireless network adapter and right-click on it.
  3. Select “Uninstall device.”
  4. Check the box that says, “Delete the driver software for this device.”
  5. Select “Uninstall” again.

After that, you’ll see that your network adapter is no longer on the list. Here’s how to install it again.

  1. Go back to the “Device Manager.”
  2. Then select “Network Adapters” followed by “Action.”
  3. Select “Scan for hardware changes.”
  4. Click on “Network Adapters” again.

At this point, your Wi-Fi adapter should appear on the list again. And that means that you’ve successfully reinstalled it.

Other Zoom Connectivity Error Codes

Just like any web-based application, Zoom has many error codes. You might also see the error code 5000 or 5004. Both could imply the same issues related to the error code 5003.

You can check the Zoom Help Center page that lists all the potential error codes linked to problems with connecting to the Zoom servers. Other errors, however, have nothing to do with connectivity.

For example, error code 2008 means that a webinar license has expired or isn’t valid anymore. Or, if you see the 10002 error code during Zoom installation, it means that your antivirus software has captured Zoom files needed for the installation. That means that you’ll probably have to go through the installation process manually.

The 10006 error code might mean the same thing or signify that the target disk where you’re downloading Zoom is full.

Zoom blocked by firewall or proxy Mac

Frequently Asked Questions

If you’re still running into problems with Zoom, there are a few more things to know. Keep reading this section for the answers to more of your questions.

I have a Mac with the A1 chip and keep getting the 5003 error. What do I do?

Many users have expressed issues with Zoom and Apple’s A1 chip. Fortunately, there is a fix. As mentioned in the first section of this article, you need to uninstall Zoom and reinstall it. But some Mac users have stated the steps above didn’t work for them. However, you can do this:

1. Open Zoom and click the Zoom menu in the upper left corner of your Mac’s screen.

Zoom blocked by firewall or proxy Mac

2. Click on Uninstall Zoom.

Zoom blocked by firewall or proxy Mac

Confirm that you’d like to uninstall Zoom. Then, reinstall the latest version of the software.

Does Zoom offer tech support?

Yes. Zoom does offer technical support. But, to speak with a Live agent you will need to upgrade your plan. Basic Zoom is free, but you don’t get a lot of help when issues arise. Those with the Pro Plan can chat with an agent while the highest tier Zoom plan lets users talk to an agent live to resolve problems.

Resolving Zoom Connectivity Issues

It can be rather annoying when you see the error code 5003 appear when trying to join a Zoom meeting. But there are ways to fix it. First, check the network you’re using. Is there a firewall?

Are you using AVG antivirus on your device? Finally, try reinstalling the wireless drivers; it can’t hurt. Hopefully, any of these solutions will help you get back to Zoom.

Have you ever received the error code 5003 on Zoom? Let us know in the comments section below.

Disclaimer: Some pages on this site may include an affiliate link. This does not effect our editorial in any way.

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Missing Device

How do I unblock Zoom on Firewall or proxy?

To Check if Windows Firewall is Blocking Zoom: Open the Start menu and search for Windows Security. Click on it. 2: Now, click on Firewall & network protection. 3: Select Allow an app through the firewall.

Why does Zoom say blocked by Firewall or proxy?

An antivirus software like AVG may be blocking your connection to Zoom. Disable the service and try again.

Why can't I access Zoom on my Mac?

Give Zoom the required permissions Click the Apple logo from the top left and select System Preferences. Click Security & Privacy. Make sure you are in the Privacy tab. Camera: Click Camera from the left sidebar and make sure zoom.

How do I fix Zoom proxy?

How to fix it.
Contact a network administrator to check your firewall and proxy settings..
Disable any antivirus software that might be interfering with your connection..
Check with your internet service provider if you can connect to the Zoom service..