If Aux cable is not working on your computer, check if your system is capable of powering the device you are connecting it to; if that's not the case, check these solutions.

On a PC, LAN cables laid directly next to the HDMI cable can also typically cause interference. Change connections and check the power connection ...

Ultimate guide to fix the Ethernet connection in Windows 11/10. Find what you can do when your Ethernet port won't connect to the Internet.