Our remote users are not able to access Out Of Office from their Outlook. They can turn off using OWA if it is on but after that they cannot see and edit the Out Of Office setting in OWA. Suspecting autodiscover issue but we are not able to fix it.
The result from running Microsoft Connectivity Test for "Outlook Autodiscover" came out with a warnings -- the short name got failed while the long name got a warning. (see the attached.)
What could be wrong? Please help.