Authentication problem with Autodiscover

[RocketBob]

Hi;
My autodiscover service isn't properly authenticating. When I try hitting the website for it (

https://.../autodiscover/autodiscover.xml)

it won't accept any credentials. The "Test autoconfig" option from Outlook on a client computer fails. My authentication methods seem ok:

[PS] C:\Windows\System32>Get-AutodiscoverVirtualDirectory|fl *authentication*


InternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated}
ExternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated}
BasicAuthentication : True
DigestAuthentication : False
WindowsAuthentication : True


My directory is set to allow certs in IIS, I have what I think are the right records in DNS... this is what I get trying to test in EMS:


[PS] C:\Windows\System32>Test-OutlookWebServices -identity TOTG

Id Type Message
-- ---- -------
1003 Information About to test AutoDiscover with the e-mail address TOTG@<blanked>.
1013 Error When contacting

https://<blanked>/Autodiscover/Autodiscove...

1006 Error The Autodiscover service could not be contacted.


I could use some help! Anyone have any ideas?