Autodiscover URL is changed/not working Externally

For sometime I've had a perfectly working autodiscover service working both internally and externally. However, I've recently begun to have problems. I have reports that Out of Office messages are failing for some and when running the test for autodiscover at https://www.testexchangeconnectivity.com I have found that it is trying to get to a non-existant URL.

The URL we've used since install is autodiscover.domain.org

The Outlook Anywhere server URL is mail.domain.org

The test cannot find the autodiscover URL because it is looking for autodiscover.mail.hccanet.org

Any idea of where and how to change this so the correct URL is distributed again would be greatly appreciated.
hccaAsked:
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Swapnil PrajapatiSr. System AdministratorCommented:
you can use this cmdlet in exchange shell to configure autodiscover URL.
Enable-OutlookAnywhere -Server CAS01 -ExternalHostname "mail.contoso.com" -DefaultAuthenticationMethod "Basic" -SSLOffloading:$False
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Swapnil PrajapatiSr. System AdministratorCommented:
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hccaAuthor Commented:
I'm familiar with this command and have used it to set the url for Outlook Anywhere to mail.domain.org on each CAS server. Why is autodiscover.mail.domain.org now being distributed instead of the autodiscover.domain.org? Is there a way to show the current configuration values? I've not stumbled across anything like that yet.
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hccaAuthor Commented:
For some reason, and without making any changes, autodiscover is now working. i did put new certs on the systems last night so maybe that had something to do with it.
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