Hello Philip,
Thank you for your message.
Could you please double-check if the date and time on the Host machine are correct? Sometimes incorrect date and time might result in getting the "Err_ssl_protocol_error" error messages.
In addition, according to the part of the log file you've attached (please in the future do not post the logs on the forum as they might contain some personal information), it seems like the ports used by Remote Utilities are blocked or used by another software. Please make sure that the machine in question has
TCP Outbound ports 5655 and/or 443 are opened. For more information on ports used by Remote Utilities please see
this page.
Last but not least, please see if any of the solutions listed in
this troubleshooting guide might help to resolve the issue as well.
Hope that helps.