Broadcom BCM57785 - Wired Internet connecting problems

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http://www.linuxquestions.org – Hello everyone! I'm a newbie in Linux world, so don't be hard on me. Recently I bought a new laptop - Acer Aspire v3-571g intel-corei3-3110M. I tried to install different linux distros: pear os, elementary os luna and ubuntu finally. In all cases it says "Connected" to my wired internet, but actually the internet isn't working. I really don't know what to. On my old Acer laptop(on which I'm currently typing) installed Ubuntu and the internet works like a charm. Maybe I have to install ethernet drivers? Please, help me. I prepared some outputs that I saw in other threads is most reque (HowTos)