CNS is adding Web Application Synthetic checks to multiple applications across their enterprise and as Netreo does not support Kerberos authentication, it results in many 401 errors. In order to fully monitor the health of Web Apps, they need Kerberos Support of Synthetic Checks. It includes both constrained and unconstrained delegation as well as AES256 encryption.
Ref SalesForce case: 00160966
Netreo Product Area | Netreo (IM) |