Here's the scenario: your laptop is approaching 13 years of age, the internal NIC has suddenly stopped working, but you don't want to give up here. You uninstall Arch Linux and install Windows 10 just to check that the NIC is actually not functioning anymore—which it isn't. You buy a USB Wi-Fi NIC Adapter, carelessly not checking if the vendor's drivers have been mainlined into the Linux kernel. You boot into an Arch Linux live session and you don't have an internet connection. Here's what you do next.

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