Please check the following:
- Is the remote computer powered on and awake (that is, not asleep or in hibernation)?
- Is RealVNC Server running on the remote computer?
- Is RealVNC Server licensed?
RealVNC Server should be functioning correctly if there is a green tick (and no error messages) displayed in its Status dialog:
See this page for a full list of error messages you may see as a connecting user.
Cloud connections
- Have you checked the most common reasons?
- Are you signed in to RealVNC Viewer on the device you want to control from?
- Are both endpoints connected to the Internet, and able to communicate with RealVNC services?
- Is RealVNC’s connectivity service working?
Direct connections
- Have you ensured the subscription applied to RealVNC Server includes direct connections?
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Have you entered the remote computer’s IP address or hostname into RealVNC Viewer correctly, including a port number if required?
If RealVNC Server is not listening on port 5900, enter:<1-99>
for ports in the range 5901-5999, for example192.168.5.127:80
for port 5980, and::<full-number>
for all other ports, for example192.168.5.127::80
for port 80. -
If you’re connecting over the Internet, have you entered RealVNC Server’s public rather than private network address?
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If you’re connecting over the Internet, have you configured the remote computer’s firewall and router properly?
Still can't connect?
If you have an eligible subscription, please contact Support.
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