Hi Muhammad,
You have experienced one of the limitations of Kerberos. The Seeq server must be in the Internet Zone for the SSO to work. This is in addition to the browsers setting in the prerequisite section of that KB article.
Our documentation on using Kerberos has the following information (located here):
Seeq is running on an intranet site OR the URL for the Seeq site has been configured to be in the Intranet zone via IE's security settings.
This is essential if the Windows Auth connector is a remote agent and the main Seeq server is running as an off-site SaaS. In this case the URL for the main Seeq server will need to be configured as an intranet site in IE's security settings because Window's default settings are to only allow automatic logon for the Intranet zone:
Very Respectfully,
Mike Cantrell