Is it possible to use 5GHz and 2.4Ghz interfaces concurrently on this device? I see the 2.4GHz interface is a management interface limited to a single client but could this be used as an AP for multiple clients as well? Is this a licence or hardware restriction?

We would like to provide an outdoor CPE to customers that also gave them wifi outside their premises - in the garden or yard, without needing more equipment. CapsMan preferably!

The 2.4GHz interface is only really meant for management.

The level 3 licence means that only one client can connect, you have to use Bridge mode, not AP Bridge.

Also the antenna gain on the 2.4GHz is only 1.5 dBi which will not provide much range.

Nick

So upgrading to Level 4 would allow AP-Bridge mode?

Another way to use that 2.4GHz wifi interface could be for hotspot, as advertisement of our WISP's services.
It would be nice if Mikrotik could lift the license restriction for this interface.
I don't think many people actually pay to get Level 4 license upgrade for a routerboard that came with Level 3, if the license costs about as much as the board itself.
RB931-2nD priced at $19.95 includes a Level4 license priced at $45