Event ID - 1101

Event Id1101
SourceMSExchange Autodiscover
DescriptionElement "%1" is empty. Request processing stopped. The event is logged because the AcceptableResponseSchema element from the client request is empty.
Event InformationAccording to Microsoft :
Cause :
This Warning event indicates that the client did not receive a valid Autodiscover response from the Microsoft Exchange Autodiscover service. The event is logged because the AcceptableResponseSchema element from the client request is empty. The XML request sent by the client must disclose a valid Autodiscover response and request schema.
Resolution :
To resolve this warning, do one or more of the following:
1.Check the Internet Information Services (IIS) logs for information about the client that sent the request.
2.Look at the Application event log for a detailed description of the event.
Reference LinksEvent ID 1101 from Source MSExchange Autodiscover

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