I must have a cursed CRM day today. I had the Outlook Sync working last week on the customers CRM 7.1 install. Installed 7.1 Patch D today and now their Outlook Sync stopped working. When trying to login with Outlook sync (with or without https) they get the attached error. I have uninstalled and reinstalled the Outlook Plugin with no luck. They are on Outlook 2010 / Win 7.