The right click in the taskbar does not work for host modul v 188.8.131.52. The problem is the same on three machines (WIN 10). I solved it by changing the start option for the service to "automatic (delayed)" So I´m now able to restart the service from the taskbar. Does other users have the same problem?
Please double-check if you have the Hide tray icon menu feature enabled in the Host Settings -> Interface tab. This feature disables the Host menu when right-clicking the Host icon in the system tray. In case if the feature was enabled (this can be the case for multiple Hosts if they were installed via a custom installer), please try disabling it and restarting the Host in order to apply the changes.
Perhaps, the issue might be caused by the Host settings or some other file in the installation folder being somehow damaged by some antivirus/firewall software activity. You can try completely uninstalling the Host completely along with cleaning up all the remaining traces of the program as described in this guide. After uninstalling Host please restart the remote machine and then try installing Host once again. This time after installing Host please also make sure to add its installation folder C:\Program Files (x86)\Remote Utilities - Host\* to the antivirus/firewall software exception list if you have any installed. Here's a guide on this that might be helpful.