Outlook keeps prompting me for my credentials when I have a Kona feed

If you run into the situation where Outlook keeps prompting you for credentials when you have a Kona feed into Outlook, you will need to remove the calendar and re-add it to stop the prompting.  To remove the Kona calendar feed, in Outlook 2010/2013, go to File > Account Settings > Account Settings > Published Calendars.  Delete the Kona calendar from this section.  Deleting the calendar will stop the Outlook prompting.  If you wish to put your Kona calendar back into Outlook, you can re-establish the connection.