actually their are some advertisement still available, but their are some of the advertisements which have been expired due to long running of these download windows kept popping up but did not downloaded.
after some testing i have turned the firewall to OFF State.
i have rule for Software Update Point in Outbound Policy, the ports are configured 8530, 8531, 80, 443 as allowed TCP.
please suggest, i am quite new to SCCM.
Regards
Owais