RealVNC

Homepage.

Windows Firewall

• Inbound rules
• Add RealVNC: Program: C:\program files (x86)\realvnc\vnc4\winvnc4.exe
• Advanced (tab) | Profiles | Tick Private & Public
• Enable two entries, one each for TCP & UDP

Not Accepting Incoming Connections Windows

https://www.realvnc.com/pipermail/vnc-list/2008-September/059240.html

As Administrator:

• VNC Server (Service-Mode) >> Stop VNC Service
• VNC Server (Service-Mode) >> Unregister VNC Service
• VNC Viewer >> Run VNC Viewer - Copy to startup folder

Creating A Custom Shortcut

• Create a shortcut to VNC Viewer
• Right-click the shortcut and from the shell menu choose 'Properties'
• Under the Shortcut tab there is a 'Target:' box in which should be something similar to: "C:\Program Files\RealVNC\VNC Server\vncviewer.exe"
• Append the required IP address or hostname (with a space) after the quotation marks followed by the port.

"C:\Program Files\RealVNC\VNC Server\vncviewer.exe" 192.168.0.1:5900

• Click the 'OK' button to finish

Thanks to RealVNC Support.