This implementation is not part of the Windows Platform FIPS validated cryptographic algorithms.
By default, the web.config value for the Autodiscover application pool contains the following entry.
Note The web.config file for Autodiscover is located by default in "C:\Program Files\Microsoft\Exchange Server\Client Access\AutoDicover."
<compilation defaultLanguage="c#" debug="true">
Note Any of these changes will require you to recycle the Autodiscover application pool.
Method 1Remove the "<compilation defaultLanguage="c#" debug="true">" line from the web.config file for Autodiscover.
Method 2Set the value of "debug" to false in the web.config file for Autodiscover:
<compilation defaultLanguage="c#" debug="false">
Method 3If you must have this value be set to true for some reason, you can make AutoDiscover work by forcing it to use 3DES instead of MD5. To do this, add the following to the <system.web> section of the web.config file:
<machineKey validationKey="AutoGenerate,IsolateApps" decryptionKey="AutoGenerate,IsolateApps" validation="3DES" decryption="3DES"/>
Article ID: 2952457 - Last Review: Dec 23, 2014 - Revision: 1