ether - wifi - ether using two WAP AC's

RouterOS Wireless Networking
1

Edit: I found out that the radar detection was screwing with me and I wasn’t patient enough. I got it working easily enough when I set it to another region.

Hi

I’m trying to bridge ethernet over layer 2 with two WAP AC’s.

I found these instructions http://forum.mikrotik.com/t/access-point-on-2-4ghz-and-5ghz-and-station-on-5ghz/136207/1

I’m able to get it to work on 2Ghz L2 though but I can’t connect the 5Ghz for some reason.

Are there fool proof instructions available somewhere on how to bridge ethernet over 5GHz wifi? I don’t need AP on either end, just the wi-fi bridge.
Can I have it connect automatically?

thanks!