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I have one Android phone which has USB hotspot feature (tethering).
Steps that reproduce the problem:

  1. I connect phone to Ubuntu.
  2. Make changes to USB Ethernet adapter in Settings => Network, like changing DNS servers or disabling IPv6 or anything else.
  3. Reboot PC.
  4. Look at new USB Ethernet adapter is in the list!
  5. Make changes again, to a new adapter this time. (Wired connection 2)
  6. Reboot PC.
  7. Look at new USB Ethernet adapter is in the list!
  8. Make changes again, to a new adapter this time. (Wired connection 3)
  9. Reboot PC.
  10. Look at new USB Ethernet adapter is in the list!
  11. Make changes again, to a new adapter this time. (Wired connection 4)
  12. Reboot PC.
  13. Look at new USB Ethernet adapter is in the list!
  14. Make changes again, to a new adapter this time. (Wired connection 5)

How to avoid this replication?
A garbage list right in the Settings control panel.

P.S. all these wired connections have the same MAC address.

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  • Instead of editing the new connection each time can you just connect to one you configured the first time? Mar 27, 2019 at 23:07
  • Ryan J. Yoder, I tried, but all previous connections are unavailable to connect to. Mar 28, 2019 at 9:59

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