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andresneri1's avatar
andresneri1
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Jan 20, 2026
Solved

HTTP portal with the NTLM auth flow is broken on XC.

We are trying to protect an OWA365 portal with XC, but some requests with NTLM authentication show an Error 503 - Service Unavailable message in XC. I think that is the NTLM auth process because whe...
  • Nikoolayy1's avatar
    Jan 21, 2026

    XC distributed cloud does not support NTLM but it should not as NTLM is end of life from Microsoft . You should switch to kerberos as XC supports this when set to HTTP1.1 for client and server side.