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Fix cannot connect to wired Internet problem in Ubuntu or Ubuntu vmware guest

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linux-howto

The wired internet connection by default is configured properly in Ubuntu installation. We can directly dial-up via sudo pppoeconf, or connect to a cable which already on internet. But sometimes wired connection stop working because of kernel upgraded, installed a special program, or even something to do with wireless. Here’s a solution that fixed my wired problem while I was trying access internet via a router(that has already access to internet) and before I directly pppoe dial-up. It also works for kernel upgrade reason, but not sure for every situation. 1.) First run ifconfig -a and ()