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Unable to login to Zoom client



I am facing issues while logging to Zoom client on my MAC. Getting error code:5003. I tried by stopping Firewall/VPN, but still issue persists. Any pointers to fix? Thanks!!


Zoom Moderator
Zoom Moderator

Hi @Praveen_badam, if you go to Error codes and messages for meetings and webinars, error 5003 is a Connectivity issue with Zoom's servers. Per our KB article for troubleshooting this error try the following

  • If you are on a network with a firewall or a proxy, contact a network administrator to check your firewall and proxy settings.
  • Antivirus software like AVG may be blocking your connection to Zoom. Disable the service and try again.
  • Check with your Internet service provider that you can connect to the Zoom service.

Let me know if this helps! 😄


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I am having exactly the same issue. I get error 5003 but this is a new problem  when there have been no changes to my internet access. The error happens now on my home network and work network. No antivirus running and no changes to firewall security and no changes in network providers. 
Also, I can connect fine through my browser, just not through the computer client/app

I’ve uninstalled and reinstalled the app. No change.