Ok so i had to flash the router after i tryed changing the mac in /etc/config/network but after i flashed it again i tryed setting the mac for the lan interface
I did this in X-WRT interface, Network > Lanconfiguration, MAC Address:
This then set /etc/config/network
option 'macaddr' '00:23:EB:2C:FC:E6'
This had no result.
idk if anyone else can give me any idea's but next i think i am going to try using startup scripts to change the base lan MAC.