Cannot load WiFi module (Ralink)

[Stinocon]

Hi all! I'm new in BackBox world but not in Linux world. I' ve a issue with wireless module, sometimes i get an error such as:

W: Possible missing firmware /lib/firmware/rtl_nic/rtl8168g-1.fw for module r8169
W: Possible missing firmware /lib/firmware/rtl_nic/rtl8106e-1.fw for module r8169


In any case WiFi work but sometimes it drops connection.
Than, i never had this error with Fedora that uses Open Driver.
I' ve got BackBox 3.1 and latest Kernel (3.9.0).

How i can load this module?
Thanks all

[b4d_bl0ck]

Hi stinocon,
can you provide the output of

Code Select Expand

lspci | grep Net
sudo lshw -C network
Where do you get that error?
Have you tried to install the vendor drivers from official website?

Bye.

[ZEROF]

That is when we try to use unstable kernel.

1.First try with : sudo apt-get install linux-firmware-nonfree  
If this don't work install linux-firmware.

2.If you don't have luck with linux-firmaware check this url :

http://ubuntuforums.org/showthread.php?t=1892321

3.Downgrade your kernel and see if problem stays.

Good luck !

[Stinocon]

stinocon@Linux:~$ lspci | grep Net

Code Select Expand

04:00.0 Network controller: Ralink corp. Device 539b

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*-network               
       description: Ethernet interface
       product: RTL8101E/RTL8102E PCI Express Fast Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth0
       version: 05
       serial: 28:92:4a:26:39:a2
       size: 10Mbit/s
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8105e-1.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:40 ioport:2000(size=256) memory:f0004000-f0004fff memory:f0000000-f0003fff
  *-network
       description: Wireless interface
       product: Ralink corp.
       vendor: Ralink corp.
       physical id: 0
       bus info: pci@0000:04:00.0
       logical name: wlan0
       version: 00
       serial: 08:3e:8e:23:03:e3
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rt2800pci driverversion=3.9.0-030900-generic firmware=0.34 ip=192.168.0.109 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:23 memory:f0100000-f010ffff


I' ve installed new kernel because with default the network card was not recognized. Then, i try to install linux-firmware-nonfree 
Thanks!