WC7600V2 netgear controller firmware

[Harry4488]

Hello, Need some help. I have the WC7600V2 controller with 24 AP's WAC720. 

The firmware of the WC7600V2 is at this moment 6.5.1.8. My questions is which firmware update do i need to update it to. 

I am afraid to update the wrong firmware so i can not controll my AP's WAC720 anymore. Please can some one give me the correct link to update the firmware. 

Many thanks

[RaghuHR]

@Harry4488 First you need to upgrade  from 6.5.1.8 to 6.5.3.9  and then to 6.5.5.0.

You can get all the firmware from the below link

https://www.netgear.com/support/product/WC7600v2.aspx#download

Thanks,

Raghu