SPS Agent Returns Error : AcceptSecurityContext returned : 0x80090311

Document ID : KB000006798
Last Modified Date : 14/02/2018
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  I'm implementing a configuration for Windows Authentication on SPS, and this
  one doesn't work and the SPS Agent reports :

  [SmNtc::getCredentials][Request for SSPI NTLM with Safari browser Authentication]
  [CSmSSPIServer::getCredentialsNTLMAuth][ SMNTLMCOOKIE TYPE 3 ]
  [CSmSSPIServer::processNTLMRequest][AcceptSecurityContext returned : 0x80090311]
  [CSmSSPIServer::getCredentialsNTLMAuth][processNTLMRequest Type 3 failed with -2146893039.
   Re-requesting for authentication]

SPS 12.52SP1;

The SPS Agent reports this error as it cannot get the NTLM token from the browser.


  Configure the Browser for automatically logon with current username and password
  to solve the issue