About Firewall or Proxy Server Configuration Requirements in Zoom App

Zoom Network firewall or web security gateway


The following errors may be related to network connection, network firewall settings, or web security gateway settings.

  • The application remains in “connected” mode
  • ” Network error, please try again “
  • ” Unable to connect to service. Please try again later to check the connection to the network. ” If that has timed out due to

Reference :
Open your browser and check your network connection to make sure you can accesshttps://zoom.us.

From SSL inspection of a web security gateway, Zoom.Us and  * .zoom.us
it is recommended that you registered in the white list.

Refer to the following table to set up a network firewall.


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Connection type: Zoom Phone


[table “5” not found /]


Connection type: Zoom website


[table “6” not found /]

Available web browsers are Google Chrome, Safari, Firefox, Microsoft Edge, and Internet Explorer. Please refer to the Zoom Web Client for the requirements of each browser.


Proxy server

Port 443 via https / SSL supports the proxy server.

Zoom will automatically detect your proxy settings. In some cases, you may be prompted for your proxy username/password.

NoteWe recommend whitelisting from zoom.us and  .zoom.us proxies or SSL inspection.

Note: The IP range to be whitelisted can also be found in the following linked article.

Conference connector, etc.


Related article


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