Exchange 2010 & Outlook 2016 Autodiscover issue

Hi

I am currently in the process of setting up some new client PCs with Outlook 2016 and I am seemingly having an autodiscover issue.

Our current setup is :
Exchange 2010 running on Server 2008 R2
Outlook 2007

which all connects fine.

When i try and get an Outlook 2016 to connect it continually asks for the user password.

If we try Outlook 2016 externally it works fine.

I have run a Test-OutlookWebServices and have got the following errors which i dont fully understand.

Would appreciate some pointers and help.

thanks


RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1019
Type       : Information
Message    : A valid Autodiscover service connection point was found. The Autodiscover URL on this object is https://mail.domain.co.uk/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1013
Type       : Error
Message    : When contacting https://mail.domain.co.uk/Autodiscover/Autodiscover.xml received the error The remote server returned an error: (401) Unauthorized.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1013
Type       : Error
Message    : When contacting https://mail.domain.co.uk/Autodiscover/Autodiscover.xml received the error The target principal name is incorrect

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1023
Type       : Error
Message    : The Autodiscover service couldn't be contacted.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1104
Type       : Error
Message    : The certificate for the URL https://server.domain.local/Autodiscover/Autodiscover.xml is incorrect. For SSL to work, the certificate needs to have a subject of server.domain.local, but the subject that was found is mail.domain.co.uk. Consider correcting service discovery, or installing a correct SSL certificate.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1106
Type       : Information
Message    : Contacted the Autodiscover service at https://server.domain.local:443/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1116
Type       : Information
Message    : [EXCH] The AS service is configured for this user in the Autodiscover response received from https://server.domain.local:443/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1115
Type       : Information
Message    : [EXCH] The OAB service is configured for this user in the Autodiscover response received from https://server.domain.local:443/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1114
Type       : Information
Message    : [EXCH] The UM service is configured for this user in the Autodiscover response received from https://server.domain.local:443/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1116
Type       : Information
Message    : [EXPR] The AS service is configured for this user in the Autodiscover response received from https://server.domain.local:443/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1115
Type       : Information
Message    : [EXPR] The OAB service is configured for this user in the Autodiscover response received from https://server.domain.local:443/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1114
Type       : Information
Message    : [EXPR] The UM service is configured for this user in the Autodiscover response received from https://server.domain.local:443/Autodiscover/Autodiscover.xml.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1122
Type       : Success
Message    : Autodiscover was tested successfully.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1013
Type       : Error
Message    : When contacting https://mail.domain.co.uk/ews/exchange.asmx received the error The request failed with HTTP status 401: Unauthorized.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1025
Type       : Error
Message    : [EXCH] Error contacting the AS service at https://mail.domain.co.uk/ews/exchange.asmx. Elapsed time was 26 milliseconds.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1026
Type       : Success
Message    : [EXCH] Successfully contacted the UM service at https://mail.domain.co.uk/ews/exchange.asmx. The elapsed time was 35 milliseconds.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1124
Type       : Success
Message    : [Server] Successfully contacted the AS service at https://server.domain.local/ews/exchange.asmx. The elapsed time was 210 milliseconds.

RunspaceId : 6d126fa7-6d99-470b-90b4-b45a5d2f2904
Id         : 1126
Type       : Success
Message    : [Server] Successfully contacted the UM service at https://server.domain.local/ews/exchange.asmx. The elapsed time was 52 milliseconds.