Any ideas on how to connect my 10.04 dist. to the internet?

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http://askubuntu.com – My computer is having difficulties connecting to the internet via a (working) ethernet cable, and I wonder if anyone has suggestions on how to fix it? I've looked up a couple of different explanations, but none of them (or their relative solutions) seemed to help much. Any time I connect the ethernet cable to the computer, it tries to connection for a while, but then eventually gives up and says it can't connect. (HowTos)