I wonder what is friggin 
(the AP mode, the netbox, the sxtsq, the hex PoE, your shop, your house, Mikrotik generally). 
You should follow these instructions:
http://forum.mikrotik.com/t/forum-rules/173010/1
and post the current configurations of both devices.
If you could add a simple scheme of the setup (which devices are where, how they are connected together, etc.) would also be useful.