RBK853-Are both 5Ghz radios client-usable IF a purely wired (ethernet) backhaul is used?

[Kyne]

Can someone confirm what happens with the 2nd 5Ghz radio when you setup Orbi in a purely wired/ethernet backhaul?

Does the previously backhaul-dedicated 2nd 5Ghz become available for client usage (load balancing the 2) or is it 'shut off' (which seems to be a waste?) if wired backhaul is utilized?

Thanks!

[FURRYe38]

The 2nd 5Ghz radio is NOT user configurable when ethernet connected. Same goes for Orbi AC.