Event ID - 29

Event Id29
SourceMSExchange OWA
DescriptionThere is an error in your Outlook Web Access configuration.

The authentication type specified in the %1web.config file is incorrect. The correct authentication type is "Windows".
Event Information Acccording to Microsoft :
Explanation:
This Error event will occur if the wrong authentication type is specified in the Web.config file. The authentication type must be Windows.
User Action:
To resolve this error, do one or more of the following:
a.Open the Web.config file and correct the authentication type.
1.Find the Web.config file for Outlook Web Access on the Client Access server. The default location is \Program Files\Microsoft\ExchangeServer\ClientAccess\Owa.
2.Make a backup copy of the file.
3.Open the original file by using an editor such as Notepad.
4.Find the authentication mode and verify that it is set to Windows:
5.Save and close the file.
Reference LinksEvent ID 29 from Source MSExchange OWA

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