ASUS RT-3100 Dual Band Wifi and VPN

Good Day,

Can a RT-3100 be set to use one wireless band (say 2.4GHz) for VPN connections and the 5GHz for non-VPN or local Internet traffic?

I have a Roku and home NAS I want to use with my VPN subscription, but don't want all my traffic to go the VPN endpoint. Splitting them up via VPN and non-VPN wireless bands would be a fantastic option.

Is this possible?

Cheers.