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Backend server error. Response Code:500, Message: Internal server

  • Updated on 18 Oct 2018
  • 1 minute to read
  • Contributors

The authentication schemes configured on the host ('Ntlm'), do not match those configured on the binding 'WebHttpBinding' (Negotiate).

If you get such an error:

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There could be an issue with the providers for Windows Authentication for the BizTalk360 website in IIS. You can add “Negotiate”, then it might work:

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