This is not a question per se, but instead this is some short info that I could not find anywhere (may have missed it).
WPA 2 Keylength limited on the Forerunner 920xt
For the Garmin Forerunner 920xt, setting up wifi - I had some problems.
It turns out that the issue was the WPA2 key length.
I have a rather long key for my standard networks, and I could not get the watch to connect.
So I enabled the guestnetwork;
* First open (no key at all). Works fine. So the watch can connect to the router at all, verified.
* WPA2 with Small key. Smallest you can have is 8 characters, so I choose that. Worked.
* WPA2 with 16 character key, also worked.
That is where I am right now.
Hope this helps someone.
BR! /marcus