Hi there,
i have been following this discussion since i received my FP 3 in December.
I always had connection issues with my FP3 at home (Fritz.box 6490 Cable @ 5Ghz and a Fritz.Repeater 310). However, i have no issues at work (Eduroam @ 5 Ghz - no clue what specific hardware that is).
My FP 3 does only connect to the Repeater (only supporting 2.4 Ghz) but never to the router itself. disregarding of my distance to the repeater, even when i´m in close proximity to the router.
I tried to change the router settings as described in this threat and a similar one - however no change what so ever - i hoped for the update not change either.
i guess this issue is really related to the WiFi-chip in the FP 3 and the fritz.box as all other devices get along pretty neatly with the 5Ghz network and switching between access points.