Summary

When try to login to Cloud Drive Mapper user can not authenticate and receives the below error.

Fix

Check that you have added in fed.federate365.com as an exception to any firewall or web filtering. 

The following zones are automatically adjusted on installation. However when the machine is in a domain type environment where GPOs are mostly likely in place controlling such settings, then these will need to be added to the policy to avoid them being overwritten on the next policy update. For users in NON domain workgroup environments then this is automatically adjusted on installation.

The requirements for the zone settings are as follows:

• Local Intranet Zone       
  • https://*.iamcloud.net 
    • ( Only applicable when used in conjunction with the full IAM Cloud Federation Platform )
• Trusted Zone                  
  • https://*.sharepoint.com
  • https://yourtenancy.sharepoint.com
  • https://yourtenancy-my.sharepoint.com

• For GPO settings                    
  • Local Intranet Zone  = 1
  • Trusted Zone            = 2