To establish cloud connections, computers and devices running VNC Connect must be able to communicate with RealVNC’s cloud service at the locations in the tables below. If a proxy or firewall is blocking outgoing communications, cloud connections cannot be established.
You don’t need to comply with these requirements if you only establish direct connections.
Note on SSL/TLS Proxies
Strict certificate signature checking is used in VNC Connect clients (VNC Viewer and VNC Server) - SSL/TLS proxies that intercept SSL/TLS connections and mint new certificates will cause connections to fail. If SSL/TLS proxies or endpoint security software with SSL/TLS inspection are used in your organization, please ensure the IP addresses detailed below are whitelisted/bypassed.
If you are sure endpoints have network access but you still cannot establish cloud connections, check our service status page.
IP Addresses
| IPv4 address | TCP port | UDP port | Role |
|---|---|---|---|
|
146.101.60.86 |
443 | n/a | Update notification service (optional) |
|
146.101.60.69
|
443 | n/a | API gateway service |
|
212.119.29.178 |
443 | n/a | Cloud team management services |
| 165.254.191.246 | 443 | n/a | |
| 165.254.191.230 | 443 | n/a | |
| 212.119.29.179 | 443 | n/a | |
| 165.254.191.247 | 443 | n/a | |
| 165.254.191.231 | 443 | n/a | |
| 212.119.29.177 | 443 | n/a | Cloud bootstrap services |
| 165.254.191.245 | 443 | n/a | |
| 165.254.191.229 | 443 | n/a | |
| 212.119.29.128/28 | 443 | 3478 11000-20000* |
Cloud connectivity services |
| 165.254.239.128/28 | 443 | 3478 11000-20000* |
|
| 165.254.191.192/28 | 443 | 3478 11000-20000* |
* required for High Speed Streaming and Audio
Domains
If your network proxy or endpoint security software requires hostname/DNS entries instead of IPs, such as zScaler, you must allow the following domains:
| Domain | Role |
|---|---|
| downloads.realvnc.com | VNC Connect Single Installer (optional) |
| *.services.vnc.com | VNC Connect cloud connectivity services |
Comments
There is also an IP address needed for updating the server(s), that information might dovetail well into this article. 146.101.60.86
Note from RealVNC: the above IP address is used for VNC Server's automatic update check feature
Hi David,
We have now updated this documentation with the IP address for our update notification service. Thank you for the suggestion and have a great day!
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