Internet broke after firmware update, X1 carbon

Hardware Support
1

Installed zorin pro about two months ago, was working fine. This is on Lenovo X1 Carbon.
I got a request to update firmware v15 something - i forget to look closely, just following the prompt.

Now internet will no longer work.

The machine is a dual boot with windows 10. At first I could still connect to internet through Windows. Now that also no longer works...
So it must be a firmware issue?
Wifi DOES connect fine. Afaik there's no firewall blocking it.
USB tethering did work, now not anymore.

Question:

  1. How can I find the firmware version currently installed?
  2. How can I install the previous version?
2

update:
I ran a Lenovo update inside the Windows 10 tha came pre-installed on the device.
That fixed the internet issue for Windows. Zorin still doesn't connect to internet.
I found that the DNS points to 127.0.0.53 only.
When I add any other DNS in the Network settings screen, it doesn't get updated

zorin-network
zorin-network1728×3072 677 KB

3

update: adding

nameserver 8.8.8.8

at the TOP of etc/resolve.conf fixed it.

Now I just need to make sure it doesn't get deleted on restart

4

Have you put Google Primary and Secondary DNS server addresses in your Router? This saves having to put them in IP settings in each device.

Primary 8.8.8.8
Secondary 8.8.4.4

5

my router? You mean the physical external device?
Will that solve the issue of systemd-resolved not saving the nameserver?

6

When I add

nameserver 8.8.8.8

at the TOP of etc/resolve.conf the issue is gone.
BUT each time the laptop goes to sleep, it stops working and I manually need to enter it again.
Adding it via the UI (settings -> Wifi -> ipv4 -> "DNS") makes no difference, it gets deleted on-sleep each time.

7

This askubuntu thread may contain the answer to your problem. See which works best for you:

1 Like
8

I ended up reinstalling Zorin

9

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