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lspci list alll PCI devices so if you have some old built in network card, or some usb cards it will not shown in the result, so to get more precise result try this: ifconfig -a | grep Ethernet Thanks for @gertvdijk note add the -a option to ifconfig to list all interfaces even if they are down


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Yes, but more than 1 line does not mean more than 1 NIC. Example $ lspci | grep -i net 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme II BCM5716 01:00.1 Ethernet controller: Broadcom Corporation NetXtreme II BCM5716 This is 1 NIC connected to eth0:0 and eth0:1 (so 2 IP adresses) that is a PCI device(!). There is a better command: ...


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You can try to install another driver for this Ethernet card sudo apt-get install r8168-dkms If that does not help, check the cable, contacts on both sides. Expanaition Realtek Ethernet RTL8111/8168 adapters are generally supported out of the box by Linux kernel. There is r8169 module for that. In most cases it works well. But some hardware revisions ...


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It is well documented that, despite Broadcom's README, bcmwl-kernel-source does not work for your device. I suggest you do: sudo apt-get purge bcmwl-kernel-source sudo apt-get install --reinstall firmware-b43-installer sudo rm /etc/modprobe.d/broadcom-sta-common.conf Reboot and your wireless should be working.


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I have been endlessly trying to find the best solution of upgrading the Wi-Fi Ubuntu 14.04.2 LTS drivers on my 2014 13.3" MacbookPro Retina and I have tried every possible solution - going onto different website and trying to install from the boot drive, or trying to get all kinds of files which would mimic the files described by the gentleman above. The ...


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Your Ethernet adapter looks OK. But the problem is that you have connected wired and wireless interfaces at the same time. That confuses routing. If you disable your wireless interface, network should work OK.



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