Please, upgrade to version 7 to see if the issue persists. If you don't want to completely uninstall your version 6 you can do the following:
1. Download portable Viewer 7 and add one of your remote Hosts in the address book (the one that you have issues with). 2. Upgrade the Host to version 7. 3. Test this one connection to see if the issue persists. I recommend that you delete the Host log (html files) before you start a remote session to avoid possible confusion. Note that the time in the log is shown as UTC, not your local time.
Could you please also let us know if you're still able to connect to this remote Host, despite seeing the error in the Host logs? I'll forward this to our developers and ask for their input on the issue.
I've checked on the issue with our developers - the "iConnectKind" error entries signify that something is modifying the traffic from time to time - for example, it might be your router or some kind of privacy software. Since you're able to connect to your remote Host, please feel free to disregard the entries in the log files.
Thank you for clarifying. I see this logged message at the time when nobody able to connect to this host (night time for example). However this hosts exposed outside of my internal network by port forwarding on router/ Ports are not default RU ports) . Does this message mean somebody from internet scanning such ports? Can this log message be modified to provide more info (like source IP of call) ?