As far as I can work out port 30003 is for SBS ..altho' in fact in the Winsend control panel it shows Localhost/port 30003 as connected under the SBS "input source" as connected (Don't have SBS!) and Radarbox input as 127.0.0.1/7879 as " not activated".
I have at various times tried 7879,8080,30003 and 33333 as ports, and assorted names /IPs as the hostname including 127.0.0.1, Localhost, Libhomeradar.org etc.
Have allowed both 7879 and 8080 at various times in the Router FW rules, tried TCP, UDP, TCP/UDP...nothing seems to make any diff.
Not that this is of world shattering importance.... but just thought it would be nice to feed info to Libhomeradar if at all possible.