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When the Raspberry Pi boots up, Ubuntu 20.04 says the following: Net: No ethernet found. starting USB... No working controllers found It continues to boot up, but this means that I can not install a desktop environment on it. The ethernet port and cable work fine, and the Raspberry Pi ethernet jack lights up when the cable is plugged in. How do I get ethernet to be recognized? Thanks!

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  • I had the same problem with Raspberry Pi 4B on Ubuntu 21.04. The eth0 connection isn't detected by Gnome Settings. The 1Gbit ethernet cable works fine on my laptop ubuntu 21.04. I swaped the raspberypi with the store, thinking was a hardware problem, but the new board got the same problem. Aug 2, 2021 at 18:49

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