Thank you for your message and the provided details.
Perhaps, the issue might be caused by some minor connectivity issues and occurs when sometimes a brief disconnection occurs and the reconnection mechanism does not work as expected.
However, the issue might be less severe in the latest 6.12 Beta 2
version. Could you please try updating Remote Utilities to the latest 6.12 Beta 2 version and see if it makes any difference? The 6.12 Beta 2 version is available for the download on this page
When updating Remote Utilities please make sure to update both Viewer and Host/Agent - in your case you will be able to generate a new Agent of the latest version using the updated Viewer (or you can try using the vanilla Agent).
Besides, we're going to further improve the reconnection mechanism in our subsequent updates as well, perhaps even completely change it.
Hope that helps.