Hello Claudio,
Thank you for your message.
Before we can proceed with further troubleshooting, please try referring to
this KB page and see if any of the solutions listed there help to resolve the issue.
In addition, please make sure that your Host and Viewer are both updated to the latest version
7.1.2.0 as the version mismatch might lead to performance issues or some features not working. You can update your Remote Utilities installation via the
Simple Update feature.
Hope that helps.