Thank you for your post.
From what you describe, it looks as if some program - a registry cleaner perhaps, an antivirus program or even Windows update - corrupted or deleted Host registry entry (key). The Host keeps all its settings, including Internet-ID connection settings in Windows registry, in this key:
HKEY_LOCAL_MACHINE\SOFTWARE\Usoris\Remote Utilities Host\
You may to completely re-install the Host then. Stop the Host, uninstall it using Windows Control Panel and delete the registry key above. Then download the Host and install it all anew.
Hope that helps.