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Network access requirements

Computers and devices running VNC Connect must be able to access RealVNC services at the locations in the table below. If a proxy or firewall is blocking outgoing communications, cloud connections cannot be established.

Nota

Access to these services is not required if you have an Enterprise subscription and establish direct connections only, or if you are using VNC 5.x.

If you are sure both endpoints have network access but you cannot establish cloud connections, check our service status page.

URL IPv4 address TCP port UDP port
https://auth-a.services.vnc.com 212.119.29.178 443 n/a
https://auth-b.services.vnc.com 165.254.191.246
https://auth-c.services.vnc.com 165.254.191.230
https://dir-a.services.vnc.com 212.119.29.179 443 n/a
https://dir-b.services.vnc.com 165.254.191.247
https://dir-c.services.vnc.com 165.254.191.231
https://hb-a.services.vnc.com 212.119.29.177 443 n/a
https://hb-b.services.vnc.com 165.254.191.245
https://hb-c.services.vnc.com 165.254.191.229
https://hc-1-gb-slg-1.services.vnc.com 212.119.29.128/28 443 3478
https://hc-2-gb-slg-1.services.vnc.com
https://hc-3-gb-slg-1.services.vnc.com
https://hc-1-us-ca-1.services.vnc.com 165.254.239.128/28
https://hc-2-us-ca-1.services.vnc.com
https://hc-3-us-ca-1.services.vnc.com
https://hc-1-us-va-1.services.vnc.com 165.254.191.192/28
https://hc-2-us-va-1.services.vnc.com
https://hc-3-us-va-1.services.vnc.com
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