The security site address needs to be added to the local intranet zone on the client machine. To do this, follow the steps below:

  1. Click Start and select Control Panel.

  2. Click Internet Options.

  3. Select the Security tab.
  4. Click Local intranet.
  5. Click Sites.

  6. Click Advanced.

  7. Enter the address of the security site and click Add.
  8. Click Close.
  9. Click OK.
  10. Click OK again.