Solution : https://service.sap.com/sap/support/notes/820028 (SAP Service marketplace login required)
Key words :
terms iisproxy ntlm kerberos windows authentication reason, provide windows authentication - ntlm, isapi module developed/optimized, default connection authentication methods, configured iisproxy solution, system including iisproxy, prerequisites properly installed, separate handshake process, avoid additional handshakes, max-socket-age
Related Notes :
886214 | End of Maintenance of IisProxy ISAPI module |
715303 | IIS 6 specific configurations for IisProxy module |
713568 | Troubleshooting IisProxy module |
629947 | IisProxy: Release notes and known issues |
629946 | IisProxy: Manual installation and update |