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Citrix FAS event 102 on VDA and no SSO


I have a strange issue with sporadic issues with SSO when using FAS on VDAs.

When it doesn't work I get this event on the VDA. Then I can reboot the VDA, and then it often works again.

[S102] Identity Assertion Logon failed.  Could not lookup SID for xyx@xyz.com [Exception: The user name or password is incorrect.

   at System.Security.Principal.WindowsIdentity.KerbS4ULogon(String upn, SafeAccessTokenHandle& safeTokenHandle)

   at System.Security.Principal.WindowsIdentity..ctor(String sUserPrincipalName, String type)

   at System.Security.Principal.WindowsIdentity..ctor(String sUserPrincipalName)

   at Citrix.Authentication.IdentityAssertion.HdxCredentialSelector.<>c__DisplayClass24_0.<QueryLogonMethod>b__0()]


I have looked through several support articles and checked all the settings suggested, and it works sometime so settings should be okay.


Anyone have a good idea to solve this issue?

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