I recently installed Ubuntu Server 24.04 on an old laptop to run a Minecraft server and set up CasaOS for managing containers. Everything is running smoothly, except for the Ethernet connection, which I believe is labeled as 'enp3s0'. My WiFi (wlp4s0) is working just fine, but the Ethernet isn't recognized at all. I've tested the Ethernet on Windows, and it works without issues. I did some research and saw mentions of changing the Ethernet interface name, but I'm not sure how to do that or what to rename it to. Can anyone help?
3 Answers
It sounds like your Ethernet interface might be disabled. When you ran `sudo lshw -C network`, it showed "-network DISABLED". You can try enabling it using the command `sudo ip link set enp3s0 up`. If it doesn’t show up, it might be a driver issue, so checking for the correct drivers could help too.
It’s tough to pinpoint the issue without more info. Can your Ubuntu machine access the local network through CasaOS? You might want to check the network configuration. Try running `ip link show` to see if your Ethernet interface is listed and its status. If it's down, you'll need to bring it up using `sudo ip link set enp3s0 up`. Also, make sure your network card is supported and that you have the correct drivers installed.
If you only see WiFi configurations in `/etc/netplan`, you'll need to create or edit a Netplan configuration for your Ethernet interface. You can create a new YAML file for it, usually something like `01-netcfg.yaml`. Make sure to include the interface name 'enp3s0', address type (static or DHCP), and gateway. Then, run `sudo netplan apply` after saving the changes. If you have questions about the YAML syntax, feel free to ask!
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