No Ethernet Internet Connection After Upgrading To Kubuntu 17.10

[kenshiwara]

Hello!

Please after upgrading from Kubuntu 17.04 to Kubuntu 17.10, I lost my internet connection. I am using an ethernet connection.

I have tried to delete the old ethernet connection from the network manager then adding it again without any fruitful results.

System Information:

• Kubuntu Version: 17.10
• Kernel: x86_64 Linux 4.13.0-16-generic
• KDE: 5.38.0
• Plasma: 5.10.5

Network Interfaces:

Name	IP Adress	Network Mask	Type	State	HWAddr
IO	127.0.0.1	255.0.0.0	Loopback	Up	00:00:00:00:00:00
enp450	192.168.1.176	255.255.255.0	Broadcast	Up	30:5a:3a:e4:32:56

Your help will be greatly appreciated! Thanks in advance.

[kenshiwara]

I managed to solve it by following the steps below:

Step 1: Open your terminal and type >

sudo dpkg-reconfigure resolvconf

Step 2: Choose "Yes" to the question of "Prepare /etc/resolv.conf for dynamic updates?".

Step 3: Reboot your system.

-----

For Reference: https://en.wikipedia.org/wiki/Resolvconf

[GreyGeek]

Thanks for posting your solution!

[oshunluvr]

Also, nice job posting the link to your source - great addition, and of course - kudos for the most well-formatted post I have ever seen!

[themixturemedia]

Hi there I am having the same issue I upgraded from 16.04 to 17.10 and got the same error message. When I tried to run sudo dpkg-reconfigure resolvconf I was getting this error message. /usr/sbin/dpkg-reconfigure: resolvconf is broken or not fully installed. I am not sure how to fix this and was hoping someone might know. I do not have internet access since my connections do not show up either. Thank you for your help.

[GreyGeek]

Upgrades, as apposed to fresh installs, often do not turn out well.

The first thing I'd try is to make sure all the packages which downloaded did install properly.
Run
sudo apt -f install
sudo dpkg --configure -a
repeatedly until nothing is returned.

If that doesn't help then reboot and take the recovery option.