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Home > Success Center > Server & Application Monitor (SAM) > HTTP-based Monitors fail website authentication

HTTP-based Monitors fail website authentication

Created by Chris Foley, last modified by MindTouch on Jun 23, 2016

Views: 1,598 Votes: 1 Revisions: 5

Overview

This article describes the issue when despite being given the correct credentials, HTTP-based Monitors fail to authenticate websites and returns the following error:

The Remote Server returned an error : (401) Unauthorized

Environment

  • All versions of SAM
  • All versions of Windows

 

Cause 

The authentication type used by the website is unsupported by the HTTP-based Monitors.

At the time of this writing, HTTP-based Monitors support the following authentication types:

  • Basic
  • Digest
  • NTLM

 

The following authentication types are unsupported:

  • Kerberos
  • Negotiate

Resolution

Enable one of the supported authentication types on the website being monitored.

 

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