the general description is as follows:
Some Exchange ActiveSync traffic to the External URL
https://owa.domain.com/Microsoft-Server-ActiveSync is being blocked due to a misconfiguration of the virtual directory WIN2K8EX1\Microsoft-Server-ActiveSync (Default Web Site). Please make sure that the External URL is stamped correctly using the Set-ActiveSyncVirtualDirectory cmdlet.
whenever i try to run the get-activesyncvirtualdirectory
[PS] C:\Windows\system32>get-activesyncvirtualdirectory
An IIS directory entry couldn't be created. The error message is Access is denied.
. HResult = -2147024891
CategoryInfo : NotInstalled: (WIN2K8EX1\Micro...fault Web Site):ADObjectId) [Get-ActiveSyncVirtualDirec tory], IISGeneralCOMException
FullyQualifiedErrorId : EEC0CFF1,Microsoft.Exchange.Management.SystemConfigurationTasks.GetMobileSyncVirtualDire ctory
Name:
Microsoft-Server-ActiveSync (Default...
Server:
WIN2K8EX
InternalUrl: