SSO - NWBC - Same system multiple client

Hi,

I have successfully achieved SSO for  SAPGUI, NWBC and NWBC for HTML, using the SNC and SSL key issued by the NetWeaver Secure login server.

Secure login client is installed in my  local client system.

I am able to achieve SSO to multiple client in same system using SAPGUI - SNC Certificate.

But using NWBC - SSL Certificates, single signon is happening for only one client and for second client in same system, it is asking user name and password.

Please let me know do I need to do any special setting to achieve SSO to multiple client in same system using NWBC / NWBC for HTML.

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I have maintained SNC tab in SU01 and in table SM30 - VUSREXTID - External ID type DN for my user id.

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Regards,

Nalla