Exacq exacqVision Server/Client OS: Windows Active Directory User Manual - Manual (Page 9)

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2/4/2015
4. Server Side Kerberos errors
 The exacqVision Server log contains StreamPI Error SSPI error: SEC_E_TIME_SKEW (the clocks on the client and server
computers are skewed). The exacqVision Server time can be no more than five minutes off from the DC's time.
 Make sure the Base DN is above the User or group OU/Container, not below or equal to it, as described in Section 3 of this
document. Make sure all the DC's FQDNs can be pinged and resolved from both the client and server

You have entered your Service Principle Name (SPN) incorrectly.

From a command prompt on the DC, enter setspn -l hostname (the hostname or the exacqVision server) .