I just installed Sygate Personal Firewall version 5.0 I ran a couple of port scans at various websites (pcflank, dslreports) and all seemed OK. I then ran a scan at Shields Up (grc.com) and it indicated that Port 5000 (UPnP Service) was open and vulnerable. I then checked this port at another scan which also showed the port open. Can someone explain? Do I need to manually close this port? Any help will be appreciated.