Good afternoon, today I downloaded/installed the most recent updates for Ubuntu 16.04 on my laptop (Lenovo B50-50), as I do regularly every day. I was asked to reboot the laptop. After the reboot I am not able to connect anymore. Network manager does not detect any wifi connection and also the cable connection does not work. network-manager is there and it is running. I restarted network-manager but nothing changes. Is there anyone who faced the same problem? Thanks
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1Probably the update was interrupted and linux-image-extra did not install. – Pilot6 May 03 '17 at 10:46
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A bad kernel also caused the same problem for me. – karel May 04 '17 at 08:19
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Welcome to AskUbuntu! Could you please run the network diagnostics and [edit] your question to include a link to the result? I know it may seem a bit overwhelming for a novice but your info so far is a bit vague and the diagnostics will likely cover all options that may cause your issue. Thanks. – David Foerster May 06 '17 at 12:16
1 Answers
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I have the same problem, there is no eth0, changes in the desktop etc.
Solution (temporary):
uname -r
-> 4.4.0-77-generic
ls /boot/initrd*
-> initrd.img-4.4.0-75-generic
-> initrd.img-4.4.0-77-generic
reboot
When the grub screen appears, edit with e, replace the lines 4.4.0-77-generic with 4.4.0-75-generic, boot with F10.
Once it is running, purge the image with problems
sudo apt-get remove --purge linux-image-4.4.0-77-generic
While it does not solve the problem you can continue to use the system until its solution.
