I have been given a W10 PC that has been factory-reset. The donor created a local account while the internet was unavailable. I used an ethernet cable to connect the new machine to my modem (no wireless). But on booting up and logging on, I have no internet. The message is 'Ethernet doesn't have a valid IP configuration'. I have tried various resets from an elevated cmd prompt, to no avail. ipconfig /renew failed with the error 'no adaptor is in the necessary state'. In Settings \Network & Internet \Ethernet, I see "Unidentified network, no internet". I know the PC is fine because internet access was working until the reset last weekend. I know the modem is fine because I am typing this from another machine plugged into it. Does anyone have any suggestions? I am at my wit's end. I do not know if the problem is at the modem or the PC end.
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