If you get an error message like the one below, it may be related to the network connection, network firewall settings, or web security gateway settings.
- Application remains in “Connecting” mode
- “Network error, please try again”
- If you’ve timed out due to “Unable to connect to the service. Please check your network connection and try again later”
Check1:
Open a browser, check the network connection, and confirm that you can access https://zoom.us .
Recommend 1
from SSL inspection of web security gateway, Zoom.Us and * .zoom.us the
it is recommended that you registered in the white list.
Refer to the table below to configure the network firewall.
| protocol | port | sender | destination |
| TCP | 80, 443 | All Zoom clients | * .zoom.us |
| TCP | 443, 8801, 8802 | All Zoom clients | IPv4: 3.80.20.128/25 3.104.34.128/25 3.120.121.0/25 3.208.72.0/25 3.211.241.0/25 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 99.79.20.0/25 103.122.166.0/23 109.94.160.0/24 115.110.154.192/26 115.114.56.192/26 115.114.115.0/26 115.114.131.0/26 120.29.148.0 /twenty four 160.1.56.128/25 161.199.136.0/22 162.12.232.0/22 162.255.36.0/22 192.204.12.0/22 202.177.207.128/27 202.177.213.96/27 204.141.28.0/22 207.226.132.0/24 209.9.211.0/24 209.9.215.0/24 210.57.55.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.88.64/27 221.122.88.128/25 221.122.89.128/25 IPv6: 2620: 123: 2000 :: / 44 |
| 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 3.211.241.0/25 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 99.79.20.0/25 103.122.166.0/23 109.94.160.0/24 115.110.154.192/26 115.114.56.192/26 115.114.115.0/26 115.114.131.0/26 120.29.148.0 /twenty four 160.1.56.128/25 161.199.136.0/22 162.12.232.0/22 162.255.36.0/22 192.204.12.0/22 202.177.207.128/27 202.177.213.96/27 204.141.28.0/22 207.226.132.0/24 209.9.211.0/24 209.9.215.0/24 210.57.55.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.88.64/27 221.122.88.128/25 221.122.89.128/25 IPv6: 2620: 123: 2000 :: / 44 |
Connection type: Zoom website
| protocol | port | sender | destination |
| TCP | 80, 443 | All Zoom clients | * .zoom.us * .cloudfront.net |
Available web browsers are Google Chrome, Safari, Firefox, Microsoft Edge, and Internet Explorer. Please refer to Internet Explorer for the requirements of each browser .
Proxy server
Zoom supports https / SSL proxy servers via port 443.
Zoom automatically detects proxy settings.
In some cases, you may be prompted to enter a proxy username / password.
See the Zoom homepage for the latest information.
Network Firewall Or Proxy Server Settings For Zoom
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