Hi,
We recently got a S2 scale, and the first weeks it worked really well. But recently it was having issues identifying people. I found similar reports where people explained that it worked on some wireless networks and not on others (e.g. okay on mifi, problem with home wifi). As such, I decided to investigate what network traffic the scale was trying to use.
https [tcp/443]
omt.garmin.com [104.16.240.98, 104.17.46.97]
connectapi.garmin.com [104.18.116.215, 104.18.117.215, 104.18.118.215, 104.18.119.215]
api.gcs.garmin.com [104.19.153.128]
http [tcp/80]
gold.garmin.com [104.19.147.86, 104.19.148.86]
udp/4123
clock.garmin.com [204.77.162.174]
dns [udp/53]
HTTPS, HTTP and DNS were already allowed on my network. After allowing udp/4123, the scale was once again able to correctly identify people.
