[ubuntu] I need help with my wifi on my toshiba laptop satillite-s875d

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http://ubuntuforums.org – I cant connect to my network cause my wifi wont work. Heres is what I got by typing this sudo lshw -C network in the terminal,*-network UNCLAIMED [C description: Network controller product: Realtek Semiconductor Co., Ltd. vendor: Realtek Semiconductor Co., Ltd. physical id: 0 bus info: pci@0000:02:00.0 version: 00 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list configuration: latency=0 resources: ioport:3000(size=256) memory:f0200000-f0203fff *-network description: Etherne (Hardware)