Internet connection problems

I am new to this. Fresh mint install today & cant get updates to install plus my internet connection is spotty & only works when i restart.

Here are the error codes:

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/libpython3.8_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/libpython3.8-minimal_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/libpython3.8-stdlib_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/python3.8-minimal_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/p/python3.8/python3.8_3.8.10-0ubuntu1~20.04_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-generic_5.4.0.77.80_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-image-generic_5.4.0.77.80_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux-meta/linux-headers-generic_5.4.0.77.80_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/l/linux/linux-libc-dev_5.4.0-77.86_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/t/thunderbird/thunderbird_78.11.0+build1-0ubuntu0.20.04.2_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/t/thunderbird/thunderbird-gnome-support_78.11.0+build1-0ubuntu0.20.04.2_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

W: Failed to fetch http://security.ubuntu.com/ubuntu/pool/universe/t/thunderbird/xul-ext-lightning_78.11.0+build1-0ubuntu0.20.04.2_amd64.deb
404 Not Found [IP: 91.189.91.38 80]

1 Like

I’m having this same problem

I’m thinking it has to do with the connectivity with the internet. It seems my internet connection is only at 45% I assume that’s not good because I keep getting check your internet connection messages.

So I decided to go back to the welcome screen and follow it in order going down. I made sure drivers were up to date, then went back to the updates and it worked! This was after a fresh restart though.

2 Likes

I’ve done that so many times now. Goodness

@mom8milion congratulations on resolving your issue!

@Vonnvonne you have a DNS resolution issue. I got swamped earlier, so I’m not sure if I was able to post the solution to it. I will check it out.

1 Like

I was blocked from commenting any further the message saying that although they killed my enthusiasm I was blocked for for 24 hour because I commented out rolled replied 16 times. Anyway here is where I am now



Ah, you had a clash with the DiscoBot!
Based on what I saw earlier, when you restart the DNS resolver and your Network Manager, you gain access to the Internet. However, after a little while, you’re losing it again.

So, my question - still - is, do you have a VPN service installed on your system?

I have never had a VPN and I did a search which found none.

So I am back to having connection problems again too…I get similar errors @Vonnvonne gets. I’m hoping that @vasileios solution will work for me too. I do not have a VPN service either.

1 Like

Tried lots of restarting and hardwired into my internet to download more updates today. One was a kernel update and the other was a firefox one.

I tried to download that kernel one but I couldn’t get in line.

It’s ok this will be resolved and we will be off and surfing.

One issue I have is I downloaded Ubuntu from the computer I’m not trying to download it on. So the computer has been erased. Imagine that. Ugggg

Hello @mom8milion!
Can you open up a terminal and type in the following commands (press enter at the end of each line?

sudo systemctl restart systemd-resolved
sudo systemctl restart NetworkManager

Then check if your DNS has been resolved, by typing:

ping -c 3 google.com

If you see a 0% packet loss, then your internet is back up. Well, your DNS (the service that resolves the actual name addresses). If not, we’ll have to try and replaced the default Name Resolving service.

1 Like

And I apologize for the edits. The autocorrect likes to mess up my code messages, which results into gibberish for the computer! :laughing:

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I tried the commands and it fixes the problem but then lost internet soon after.


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As a frustrated homeschool mom that needs this to work I searched elsewhere for a solution. So far so good using this method. I am on an old lenovo laptop and just replaced win7 with linux so I thought this solution might apply.

The advice:

Disable IPv6

2.2. Some old modems and routers can’t deal properly with modern IPv6. This might cause a bad unstable connection or even a complete failure to establish any connection at all. In that case, disable IPv6 like this:

Menu - Preferences - Network Connections

Click on the name of your current connection - click the button Edit
Tab IPv6 Settings - Method: change it into Ignore

Click the button Save and then click the button Close

Disconnect and reconnect, or simply reboot your computer.

Link to advice:

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I did a bunch of tasks in that thread you posted. I have no idea what happened but something happened.

I’m in the web.

This group is really great and thank you for your persistence.

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And IPv6 strikes again! I thought they had fixed the protocol by now (not a Linux error).