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An error appears after moving the K2 database from SQL 2012 to SQL 2016

This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.
This article has been archived, and/or refers to legacy products, components or features. The content in this article is offered "as is" and will no longer be updated. Archived content is provided for reference purposes only. This content does not infer that the product, component or feature is supported, or that the product, component or feature will continue to function as described herein.


After moving the K2 database from SQL 2012 to SQL 2016, the following error appears:

"61012 Exception from message source [Email]: System.Net.WebException: The request failed with HTTP status 401: Anonymous Request Disallowed."


This issue was caused by a missing password in the EWS Connection String.

Troubleshooting Steps

To resolve this issue:

  • Update the password in the ConnectionStringEditor located in [K2 blackpearl\Host Server\Bin]
  • Restart the K2 Service.