Help Center
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
Note: We recommend whitelisting zoom.us and *.zoom.us from web security gateway's SSL inspection
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 |
IPv4: 3.80.20.128/25 |
| UDP |
3478, 3479, 8801 - 8810 |
All Zoom Clients | IPv4: 3.80.20.128/25 3.104.34.128/25 3.120.121.0/25 3.208.72.0/25 4.34.125.128/25 4.35.64.128/25 8.5.128.0/23 13.52.6.128/25 13.52.146.0/25 18.205.93.128/25 50.239.202.0/23 50.239.204.0/24 52.61.100.128/25 52.202.62.192/26 52.215.168.0/25 64.69.74.0/24 64.125.62.0/24 64.211.144.0/24 65.39.152.0/24 69.174.57.0/24 69.174.108.0/22 99.79.20.0/25 103.122.166.0/24 109.94.160.0/24 115.114.56.192/26 115.114.131.0/26 120.29.148.0/24 162.12.232.0/22 162.255.36.0/22 192.204.12.0/22 202.177.207.128/27 202.177.213.96/27 204.141.28.0/22 207.226.132.0/24 209.9.211.0/24 209.9.215.0/24 210.57.55.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.88.64/27 221.122.88.128/25 221.122.89.128/25 IPv6: 2620:123:2000::/44 |
Connection Type: Zoom Voice
| Protocol | Ports | Source | Destination |
|---|---|---|---|
| TCP | 5090, 5091 | All Zoom Clients | 192.204.12.0/22 |
| UDP | 5090 | All Zoom Clients | 192.204.12.0/22 |
| UDP | 20000-64000 | All Zoom Clients | 162.12.232.0/22 |
Connection Type: Zoom Website
| Protocol | Ports | Source | Destination |
|---|---|---|---|
| TCP | 80, 443 | All Zoom Clients | *.zoom.us *.cloudfront.net |
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.
For Meeting Connector and Others
- Firewall settings for Meeting Connector
- Firewall settings for Cloud Room Connector
- Firewall settings for Virtual Room Connector
- Firewall settings for Group Messaging
Please submit a ticket if you have further questions.
