Level	Date and Time	Source	Event ID	Task Category
Error	08/08/2017 14:31:05	Microsoft-Windows-User Device Registration	304	None	"Automatic registration failed at join phase.  Exit code: Unknown HResult Error code: 0x801c0021. Server error: empty. Debug Output:\r\n joinMode: Join
drsInstance: undefined
registrationType: undefined
tenantType: undefined
tenantId: undefined
configLocation: undefined
errorPhase: discover
adalCorrelationId: undefined
adalLog: undefined
adalLog: undefined
adalResponseCode: 0x0
."
Error	08/08/2017 14:31:05	Microsoft-Windows-User Device Registration	309	None	Failed to discover the Azure AD DRS service. Exit code: Unknown HResult Error code: 0x801c0021.
Error	08/08/2017 14:31:05	Microsoft-Windows-User Device Registration	201	None	"The discovery operation callback failed with exit code: Unknown HResult Error code: 0x80072ee2. The server returned HTTP status: 0. 
Server response was:
"
Error	08/08/2017 14:31:05	Microsoft-Windows-User Device Registration	233	None	The WinHTTP callback function failed. WINHTTP_STATUS_CALLBACK status code: 2097152. Error: Unknown Win32 Error code: 0x80072ee2
Error	08/08/2017 14:30:25	Microsoft-Windows-User Device Registration	304	None	"Automatic registration failed at join phase.  Exit code: Unknown HResult Error code: 0x801c0021. Server error: empty. Debug Output:\r\n joinMode: Join
drsInstance: undefined
registrationType: undefined
tenantType: undefined
tenantId: undefined
configLocation: undefined
errorPhase: discover
adalCorrelationId: undefined
adalLog: undefined
adalLog: undefined
adalResponseCode: 0x0
."
Error	08/08/2017 14:30:25	Microsoft-Windows-User Device Registration	309	None	Failed to discover the Azure AD DRS service. Exit code: Unknown HResult Error code: 0x801c0021.
Error	08/08/2017 14:30:25	Microsoft-Windows-User Device Registration	201	None	"The discovery operation callback failed with exit code: Unknown HResult Error code: 0x80072ee2. The server returned HTTP status: 0. 
Server response was:
"
Error	08/08/2017 14:30:25	Microsoft-Windows-User Device Registration	233	None	The WinHTTP callback function failed. WINHTTP_STATUS_CALLBACK status code: 2097152. Error: Unknown Win32 Error code: 0x80072ee2
Error	08/08/2017 14:29:50	Microsoft-Windows-Immersive-Shell	5973	(5973)	Activation of app Microsoft.Windows.Cortana_cw5n1h2txyewy!CortanaUI failed with error: This app can't be activated by the Built-in Administrator. See the Microsoft-Windows-TWinUI/Operational log for additional information.
Error	08/08/2017 14:29:44	Microsoft-Windows-Immersive-Shell	5973	(5973)	Activation of app Microsoft.Windows.ContentDeliveryManager_cw5n1h2txyewy!App failed with error: This app can't be activated by the Built-in Administrator. See the Microsoft-Windows-TWinUI/Operational log for additional information.
Error	08/08/2017 14:29:27	Microsoft-Windows-DistributedCOM	10010	None	The server {A463FCB9-6B1C-4E0D-A80B-A2CA7999E25D} did not register with DCOM within the required timeout.