SPS Agent Returns Error : AcceptSecurityContext returned : 0x80090311

Document ID : KB000006798
Last Modified Date : 14/02/2018
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Issue:

  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]

Environment:
SPS 12.52SP1;
Cause:

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

Resolution:

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