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Network Firewall or Proxy Server Settings for Zoom Follow

Network Firewall or Web Security Gateway

If your app stays in a "connecting" mode or  timed out due to "Network error, please try again" or "Can't connect to our service, please check your network connection and try again"  - it could be related to your network connection, network firewall settings or web security gateway settings.

Note: Check your network connection by opening a browser and ensure that you can access https://zoom.us

To configure your network firewall, please see the following table: 

Protocol Ports Source Destination
TCP 80,443 All Zoom Clients *.zoom.us
TCP 443, 8801, 8802 All Zoom Clients




3478, 3479, 8801 - 8810

All Zoom Clients




Connection Type: Zoom Phone

Protocol Ports Source Destination
TCP 5090, 5091 All Zoom Clients
UDP 5090 All Zoom Clients
UDP 20000-64000 All Zoom Clients


Connection Type: Zoom Website

Protocol Ports Source Destination
TCP 80, 443 All Zoom Clients *.zoom.us

Proxy Server 

We support https/SSL proxy server via port 443.

Zoom automatically detects your proxy settings. In some instances, you may be prompted to enter the proxy username/password.

Note: We recommend whitelisting zoom.us and *.zoom.us from proxy or SSL inspection. 

Note: IP ranges to be whitelisted can also be found at the following:

For Meeting Connector and Others

Please submit a ticket if you have further questions. 


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