WNR3500LV2 KONG error insmod: bcm57xx.ko: module not found

Hello

I use this firmware http://www.myopenrouter.com/download/dd-wrt-kong-mod-netgear-wnr3500lv2-... but i found a problem on boot router

Here is the error

eth0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 7.14.89.21 (r524987)
loading bcm57xx
insmod: bcm57xx.ko: module not found
loading switch-core

Do you have a solution to this problem because the router does not. The switch is not recognized and so the firmware is invalid.

The 2012 firmware works but not in 2015.

Too bad.

How to compilier BCM47XX module with the kernel in 3.X?