Event ID 3

KB ID 0000341 Dtd 12/10/10

Problem

Event ID 3

Source: SystemServiceModel

Error: WebHost failed to process a request. Sender Information.

Exception: System.ServiceModel.ServiceActivationException: The service '/EWS/exchange.asmx' cannot be activated due to an exception during compilation.  The exception message is: Security settings for this service require 'Anonymous' Authentication but it is not enabled for the IIS application that hosts this service.. ---> System.NotSupportedException: Security settings for this service require 'Anonymous' Authentication but it is not enabled for the IIS application that hosts this service.

event id 3

It’s simple permissions error in IIS.

Solution

1. Locate the Virtual Directory in the error message, in the example above that the EWS virtual directory. (Exchange Web Services).

2. Click Start > Administrative Tools > Internet Information Services (IIS) Manager > Expand Sites > Default Web sites > locate the problem virtual directory > Select it then open authentication.

ews authentication

3. Make sure “Anonymous Authentication” is set to enabled.

Anonymous Authentication

4. Then restart web services, click Start > in the run/search box type cmd{enter} > Execute the following command,

iisreset /noforce

restart iis command

Related Articles, References, Credits, or External Links

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Author: Migrated

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