Network Firewall or Proxy Server Settings for Meetings Follow

If you are on a corporate or VPN network and are encountering connection issues for meetings, please see the following:

URL Filter

If you know what the firewall/URL filter is that is blocking access to zoom.us, please let us know via mailto:support@zoom.us we will contact the vendor to update their categorization.

You can also contact your IT admin to re-categorize zoom.us from uncategorized to a business category, and allow *zoom.us URL as exception. 

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 from proxy or SSL inspection. 

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 the http://zoom.us

     Note: We recommend whitelisting *zoom.us from web security gateway's SSL inspection

To configure your network firewall, please see: 

Connection Type: Zoom Cloud (Basic/Free Account)

Protocol Ports Source Destination
TCP 443, 8801, 8802 All Zoom Clients *.zoom.us
8.5.128.0/23
52.202.62.192/26
64.211.144.0/24
115.114.131.0/26
162.255.36.0/22
192.204.12.0/22
202.177.207.128/27
202.177.213.96/27
204.141.28.0/22
209.9.211.0/24
213.19.144.0/24
221.122.88.128/25
UDP 8801, 8802 All Zoom Clients *.zoom.us
8.5.128.0/23
52.202.62.192/26
64.211.144.0/24
115.114.131.0/26
162.255.36.0/22
192.204.12.0/22
202.177.207.128/27
202.177.213.96/27
204.141.28.0/22
209.9.211.0/24
213.19.144.0/24
221.122.88.128/25

Connection Type: Zoom Business Cloud (Pro, Business, API, and EDU)

Protocol Ports Source Destination
TCP 80,443 All Zoom Clients *.zoom.us
TCP 443, 8801, 8802 All Zoom Clients 8.5.128.0/23
52.202.62.192/26
64.211.144.0/24
115.114.131.0/26
162.255.36.0/22
192.204.12.0/22
202.177.207.128/27
202.177.213.96/27
204.141.28.0/22
209.9.211.0/24
213.19.144.0/24
221.122.88.128/25
UDP 8801, 8802 All Zoom Clients 8.5.128.0/23
52.202.62.192/26
64.211.144.0/24
115.114.131.0/26
162.255.36.0/22
192.204.12.0/22
202.177.207.128/27
202.177.213.96/27
204.141.28.0/22
209.9.211.0/24
213.19.144.0/24
221.122.88.128/25

Connection Type: Zoom Website

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

For Meeting Connector and Others

Please submit a ticket if you have further questions. 

 

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