Datto RMM: Troubleshooting VNC Connection Issues



This article discusses troubleshooting common issues with Datto RMM VNC connections.


  • Datto RMM


When the Datto RMM Agent initially installs, it automatically installs UltraVNC (UVNC) on the endpoint. If you have difficulties connecting with UVNC, consult the troubleshooting steps below.

You can only VNC from a Windows device to a Mac or Windows device.

Conflicting VNC Versions

Is there currently another version of VNC installed on the machine?

Handshake Failures

Are there handshake failures in the Datto RMM log files?

Object Reference Errors

Are there object reference errors in the Datto RMM log files?

Other Problems

If there are other problems occurring it would be beneficial to run the Comstore Component to uninstall conflicting versions of VNC.

Additional Resources

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