"Activation of network connection failed" for ethernet connection
Solution 1
After trying various solutions, the only thing that worked eventually was resetting the router. Moral of the story: try the simplest solutions first.
Solution 2
If a dual boot with Windows 10, you may need to disable the fast startup options first. See link...
I needed to do this to allow to connect to the internet. Do this first, then install Ubuntu.
Ubuntu Network Connection Issue
Solution 3
I had this problem with network-manager too and it helped simply to re-install it:
sudo apt-get install --reinstall network-manager
Then reboot your machine. It could help. If not, I would avoid dual-boot.
If this does not fix your problem then do the following...
sudo ifconfig [interface] down
sudo ifconfig [interface] up
Solution 4
Installing Ubuntu 18.04 LTS on an Acer laptop. I have restarted the system three times before eventually the Ethernet connection worked like a charm.
I am not suggesting that three is a magic number, but do not get discouraged after two attempts. I think to have been waiting long enough the first two times before concluding that no headway was being made. Among the attempts I disconnected and reconnected the wired connection manually from the menu, as though its master's voice had an effect as sometimes it has.
Nothing compares with the immediate response at the third try as expected. I could then download all the system updates. I cannot say yet whether these updates improve the situation for good. I might add a note later on. Hope this helps though.
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Pedro Gordo
High interest in open source technologies, especially Apache Cassandra for which I wrote a new compaction strategy (not yet in-tree), as the topic for my MSc thesis. I'm currently working at Pythian as a Cassandra Consultant and DBA, where I provide daily support to mission-critical environments to multiple clients. I also have more than six years of experience as a developer, building applications in Java, and C#.
Updated on September 18, 2022Comments
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Pedro Gordo over 1 year
I have installed Ubuntu 18.04 on a Surface Book with dual boot, and I can't get the ethernet connection to work. Although the wifi connects, I keep getting the "activation of network connection failed" error for the ethernet.
sudo lshw -C network
gives me:*-network description: Wireless interface product: 88W8897 [AVASTAR] 802.11ac Wireless vendor: Marvell Technology Group Ltd. physical id: 0 bus info: pci@0000:03:00.0 logical name: wlp3s0 version: 00 serial: 98:5f:d3:45:f8:58 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=mwifiex_pcie ip=192.168.1.189 latency=0 multicast=yes wireless=IEEE 802.11 resources: irq:133 memory:b9500000-b95fffff memory:b9400000-b94fffff *-network description: Ethernet interface physical id: 1 logical name: enxc49dede69606 serial: c4:9d:ed:e6:96:06 size: 10Mbit/s capacity: 1Gbit/s capabilities: ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=r8152 driverversion=v1.09.9 duplex=half link=yes multicast=yes port=MII speed=10Mbit/s
But I suppose this is not near enough information to investigate. Please let me know what else is useful to know in this case, and I'll add that to the question.
PS: I saw this question, but I have all the updates installed, and I still can't connect, so this is not a duplicate.
UPDATE: Before turning off the computer, I turned off the cable connection in Settings. Today when I turned it on, the ethernet button is gone:
Running
journalctl
gives this: https://gist.github.com/sedulam/b37515fc90ab41a6d1c88a951baf11f6ip ro
gives this:default via 192.168.1.254 dev wlp3s0 proto dhcp metric 600 169.254.0.0/16 dev wlp3s0 scope link metric 1000 192.168.1.0/24 dev wlp3s0 proto kernel scope link src 192.168.1.195 metric 600
systemctl gives: https://gist.github.com/sedulam/77d905dc3ecdf379a785b0694e23ed3e
ps aux | egrep wpa\|conn
gives:root 1037 0.0 0.0 45016 7504 ? Ss 21:16 0:00 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant pedro 3460 0.0 0.0 21536 1088 pts/0 S+ 21:21 0:00 grep -E --color=auto wpa|conn
service --status-all gives: https://gist.github.com/sedulam/ae85b271a24aecdd3f04f920df2059e9
Surface Book model: Microsoft Surface Book 13.5 inch Touchscreen Laptop (Intel Core i7-6600U 2.6 GHz, 16 GB RAM, 512 GB SSD, NVIDIA 1 GB Integrated Graphics, Windows 10 Pro)
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Thomas Ward over 5 yearsComments are not for extended discussion; this conversation has been moved to chat.
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WinEunuuchs2Unix over 5 yearsCan you update your question with the exact Microsoft Surface Book model? Also can you add in the make and model of your Ethernet device?
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Pedro Gordo over 5 years@WinEunuuchs2Unix done
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Pmpr over 5 yearsCould you solve your problem? I am at the exact same thing
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Pedro Gordo over 5 years@Trix nope... Gave up and removed the dual boot.
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Pedro Gordo over 5 yearsDidn't worked. :( Thanks anyway.
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Pedro Gordo over 5 yearsI already had that disabled, unfortunately, no luck. Thanks for sharing though! We have narrowed it down to issues with the surface dock firmware. I have since removed Ubuntu to a dedicated laptop.
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Reyhn over 5 yearsDisabling "fast startup" required me to actually shut down the computer and wait for 30 seconds before the setting had any effect (just rebooting and installing Ubuntu did not work).
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jasxun over 3 yearsConfirmed that the computer had to be powered off after turning off "fast startup" in Windows, just rebooting would not work.
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eri0o over 3 yearsSo, I have dualboot, and after I boot windows, booting back to Ubuntu requires me to restart my router, I have no idea why, but thanks for this answer otherwise I would not think about doing this.
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Dean P over 3 yearsWhat do you mean by "reloading?" Do you mean resetting?
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mkwithplus over 3 yearsPrecisely this.
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Sudarshan over 2 yearsI had Wi-Fi issue, solved by following 1st steps. Thanks!
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Phil_T about 2 yearsYep, 100%. Worked for me. As soon as I reset the router the connection was immediately established. This is in ubuntu 20 with dell r730