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, or restrict DNS lookups on your network, you must allow the following domains:
| Domain | Role |
|---|---|
| downloads.realvnc.com | VNC Connect Single Installer (optional) |
| *.services.vnc.com | VNC Connect cloud connectivity services |
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