Sorry, I accidentally clicked down vote from mobile browser and my fingers aren't really as ginourmous of sausages~ LMAO
Anyway, this reference to adjusting clocks is really a potential workaround for several.
Any of you may have an issue depending on your firewall ruleset; if by chance you block traffic at your FW for anything destined to Singapore your Garmin Index Scale will NOT connect to WiFi completely. The Garmin Connect app will state it has completed the setup of your device; when you back out of the WiFi settings menu to the Garmin Connect dashboard your Garmin Index Scale will flash the WiFi icon and the wrench icon will remain constant.
I merely unblocked traffic to Singapore in my router and this resolved my issue.
I'll ad this to the reference where I had intermittent resolution using mobile phone HotSpot and then reconfiguring to home AP WiFi.
Check the option to update clock entries for your router as listed above to a US clock & firewall rules if you block specific countries. My local could be using Singapore for NTP which resulted in my specific issue with WiFi.
It seems that the Garmin Index Scale must check time first when establishing connections with Garmen Connect servers and if your device cannot reach the clock.garmin.com because of regional DNS lookups and FW blocking you may have issues.