The box says "Minimum requirements: wireless network with 802.11 ac/n/g" which I assume means 5Ghz.
And I suspect this is the reason for H/W version A2 - the wireless guts got upgraded for 5Ghz AC. (This is F/W 1.12).
Or maybe not. On another part of the box it says "HD Wireless N outdoor Cloud Camera (DCS-2330L)".
H/W ver A1 says for minimum requirements state: "Wireless (802.11g or 802.11n) Network".
I'm trying to connect to a DIR-890L. I turned off smart connect and used separate names. Only the 2.4Ghz shows up in WiFi list.
Forcing 5Ghz name fails to connect.
My DCS-960L is connected via 5Ghz.