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Network SSPI Error logging into a Client Only PC using Windows Authentication with Security Expert

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Network SSPI Error logging into a Client Only PC using Windows Authentication with Security Expert

Commander Alan_Wood Commander
‎2020-09-29 10:55 AM

on ‎2020-09-29 10:55 AM

Issue

When attempting a login from a Security Expert client PC, it generates a "Network SSPI error" when using Windows Authentication and the machine name.

Client-PCNameSSP1Error.jpg

Product Line

Security Expert Server

Environment

  • Security Expert 4.3.285.21
  • Multiple PC Security Expert Installation using Windows Authentication

Cause

The Network SSPI error is generated at the Client PC Login because of how Security Expert implements RFC1034 which stipulates how machine names are used for DNS./p>

Resolution

1. Place a period at the end of the Security Expert Server machine while logging into the client only Security Expert PC

Example:

  • Using "WIN-B0DOGEHESMN" as the server name will not work
  • Using "WIN-B0DOGEHESMN." will work
    • Notice this works because of the "." at the end

Here is a graphical example of logging in with the correct server name by adding the "."

Adding Period Examples.png

2. The other workaround would be to use the IP address of the server instead of the fully qualified domain name (FQDN).
*Note* IT departments typically prefer the use of the FQDN name

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