Your Office 365 tenant is unable to connect the on-premises Autodiscover endpoint for domain {0}. This is typical caused ...

Your Office 365 tenant is unable to connect the on-premises Autodiscover endpoint for domain {0}.  This is typical caused by firewall rules, DNS or certificate issues in the on-premises organization. Instead of configuring the endpoints using Autodiscover, the Hybrid Configuration wizard will use default settings that work for most organizations. For more information, see http://go.microsoft.com/fwlink/?LinkId=262803.