Help with internet on Ubuntu 12.10

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http://askubuntu.com – I have a custom-built computer and the Ethernet port and my wireless USB card (Belkin DB600) both don't work. The Ethernet port didn't work for Windows either, I had to install the drivers using an image of the driver disk on my laptop. My mother board is an ASUS P8Z77-V 00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09) 00:01.0 PCI bridge: Intel Corporation Xeon E3-1200/2nd Generation Core Processor Family PCI Express Root Port (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller ( (HowTos)