I cant't write data in my networkspace 2

Hello and sorry for my bad english
I have installed the alternative firmware on my networkspace 2. the 14.00
I can't see it in my reseau, only the mini dnla server i have activated.
If i want extend the usb in control panel in my browser, it's grey.
I only acces with my browser with ping.
I can't write in the folder of the mini dnla server.
So how i made to write data in my NAS ?
Thanks
I have installed the alternative firmware on my networkspace 2. the 14.00
I can't see it in my reseau, only the mini dnla server i have activated.
If i want extend the usb in control panel in my browser, it's grey.
I only acces with my browser with ping.
I can't write in the folder of the mini dnla server.
So how i made to write data in my NAS ?
Thanks