Ruckus AP don´t recognize internal network

I currently have a R700 operating normally in my network. It is in standalone mode and works great !

Then, i thought that i need more 5ghz coverage so i snatched an awesome deal on a R720.

After it arrived, and because it defaults to 192.168.0.1, i used my trusty USB->Ethernet adapter and configured it (no problems, login just fine and updated the firmware to the latest unleashed succesfully).

Unplugged it from the USB adapter and plugged it in my normal network.

Then, the mistery started.

My network simply CAN ́T SEE the R720.

I have a Edgerouter (not using it ́s passive POE) and a Mikrotik switch (not POE) . In the Switch the port isn ́t even active. The port is enabled and was being used by the R500 just fine ! I ́ve tried to

I use an AXIS 60w POE injector brick that can provide all the power that the R720 can devour, but to no avail, it simply isn ́t there.

But when i go back to the USB adapter it work just fine !

I know that the Mikrotik don ́t support or do LLDP, but this hasn ́t stopped the R700 from working (LLDP is active in the router, but connecting the R720 directly to it didn´t help).

Can anyone shed some light/insight ? I am at my wit ́s end here :(