Hallo Norbert,
Meinte anwählen, anhaken, markieren... 
Wenn ich dies nicht mache, kommen folgende Meldungen:
Code
Attempting the Autodiscover and Exchange ActiveSync test (if requested).
Testing of Autodiscover for Exchange ActiveSync failed.
Additional Details
Elapsed Time: 6502 ms.
Test Steps
Attempting each method of contacting the Autodiscover service.
The Autodiscover service couldn't be contacted successfully by any method.
Additional Details
Elapsed Time: 6502 ms.
Test Steps
Attempting to test potential Autodiscover URL https://XXX.at:443/Autodiscover/Autodiscover.xml
Testing of this potential Autodiscover URL failed.
Additional Details
Elapsed Time: 2937 ms.
Test Steps
Attempting to resolve the host name XXX.at in DNS.
The host name resolved successfully.
Additional Details
IP addresses returned: XX.XXX.XXX.99
Elapsed Time: 1261 ms.
Testing TCP port 443 on host XXX.at to ensure it's listening and open.
The port was opened successfully.
Additional Details
Elapsed Time: 915 ms.
Testing the SSL certificate to make sure it's valid.
The SSL certificate failed one or more certificate validation checks.
Additional Details
Elapsed Time: 760 ms.
Test Steps
The Microsoft Connectivity Analyzer is attempting to obtain the SSL certificate from remote server XXX.at on port 443.
The Microsoft Connectivity Analyzer successfully obtained the remote SSL certificate.
Additional Details
Remote Certificate Subject: CN=www.XXX.eu, OU=IT, O=XXX GmbH, C=AT, OID.2.5.4.15=Private Organization, OID.1.3.6.1.4.1.311.60.2.1.3=AT, SERIALNUMBER=381011k, Issuer: CN=COMODO RSA Extended Validation Secure Server CA, O=COMODO CA Limited, L=Salford, S=Greater Manchester, C=GB.
Elapsed Time: 732 ms.
Validating the certificate name.
Certificate name validation failed.
Tell me more about this issue and how to resolve it
Additional Details
Host name XXX.at doesn't match any name found on the server certificate CN=www.XXX.eu, OU=IT, O=XXX GmbH,C=AT, OID.2.5.4.15=Private Organization, OID.1.3.6.1.4.1.311.60.2.1.3=AT, SERIALNUMBER=381011k.
Elapsed Time: 0 ms.
Attempting to test potential Autodiscover URL https://autodiscover.XXX.at:443/Autodiscover/Autodiscover.xml
Testing of this potential Autodiscover URL failed.
Additional Details
Elapsed Time: 2047 ms.
Test Steps
Attempting to resolve the host name autodiscover.XXX.at in DNS.
The host name resolved successfully.
Additional Details
IP addresses returned: XX.XX.XX.241
Elapsed Time: 774 ms.
Testing TCP port 443 on host autodiscover.XXX.at to ensure it's listening and open.
The port was opened successfully.
Additional Details
Elapsed Time: 611 ms.
Testing the SSL certificate to make sure it's valid.
The SSL certificate failed one or more certificate validation checks.
Additional Details
Elapsed Time: 662 ms.
Test Steps
The Microsoft Connectivity Analyzer is attempting to obtain the SSL certificate from remote server autodiscover.XXX.at on port 443.
The Microsoft Connectivity Analyzer successfully obtained the remote SSL certificate.
Additional Details
Remote Certificate Subject: CN=autodiscover.XXX.at, OU=HRA, O=XXX GmbH, C=AT, Issuer: CN=hr-net-HR-S001-CA, DC=hr-net, DC=local.
Elapsed Time: 620 ms.
Validating the certificate name.
The certificate name was validated successfully.
Additional Details
Host name autodiscover.XXX.at was found in the Certificate Subject Common name.
Elapsed Time: 0 ms.
Certificate trust is being validated.
Certificate trust validation failed.
Test Steps
The Microsoft Connectivity Analyzer is attempting to build certificate chains for certificate CN=autodiscover.XXX.at, OU=HRA, O=XXX GmbH,C=AT.
A certificate chain couldn't be constructed for the certificate.
Tell me more about this issue and how to resolve it
Additional Details
The certificate chain didn't end in a trusted root. Root = CN=hr-net-HR-S001-CA, DC=hr-net, DC=local
Elapsed Time: 15 ms.
Attempting to contact the Autodiscover service using the HTTP redirect method.
The attempt to contact Autodiscover using the HTTP Redirect method failed.
Additional Details
Elapsed Time: 782 ms.
Test Steps
Attempting to resolve the host name autodiscover.XXX.at in DNS.
The host name resolved successfully.
Additional Details
IP addresses returned: XX.XX.XX.241
Elapsed Time: 8 ms.
Testing TCP port 80 on host autodiscover.XXX.at to ensure it's listening and open.
The port was opened successfully.
Additional Details
Elapsed Time: 193 ms.
The Microsoft Connectivity Analyzer is checking the host autodiscover.XXX.at for an HTTP redirect to the Autodiscover service.
The Microsoft Connectivity Analyzer failed to get an HTTP redirect response for Autodiscover.
Additional Details
An HTTP 401 Unauthorized response was received from the remote Unknown server. This is usually the result of an incorrect username or password. If you are attempting to log onto an Office 365 service, ensure you are using your full User Principal Name (UPN).
HTTP Response Headers:
X-SOAP-Enabled: True
X-WSSecurity-Enabled: False
X-WSSecurity-For: None
Cache-Control: private
Content-Type: text/html;charset=ISO-8859-1
Date: Wed, 17 Aug 2016 10:55:55 GMT
Server: Apache
WWW-Authenticate: NTLM,Negotiate,Basic realm="autodiscover.XXX.at"
X-AspNet-Version: 2.0.50727
X-Powered-By: ASP.NET
Vary: Accept-Encoding
Content-Length: 107
Keep-Alive: timeout=15, max=100
Connection: Keep-Alive
Elapsed Time: 580 ms.
Attempting to contact the Autodiscover service using the DNS SRV redirect method.
The Microsoft Connectivity Analyzer failed to contact the Autodiscover service using the DNS SRV redirect method.
Additional Details
Elapsed Time: 486 ms.
Test Steps
Attempting to locate SRV record _autodiscover._tcp.XXX.at in DNS.
The Autodiscover SRV record wasn't found in DNS.
Tell me more about this issue and how to resolve it
Additional Details
Elapsed Time: 486 ms.
Checking if there is an autodiscover CNAME record in DNS for your domain 'XXX.at' for Office 365.
Failed to validate autodiscover CNAME record in DNS. If your mailbox isn't in Office 365, you can ignore this warning.
Tell me more about this issue and how to resolve it
Additional Details
There is no Autodiscover CNAME record for your domain 'XXX.at'.
Elapsed Time: 247 ms.
Nein ich teste es über einen iPhone Hotspot / WLAN Hotspot an einem Laptop (Domänenmitglied) mit dem Netzbetreiber Drei Hutchison AT.
LG
