HP Pavilion DV6936 network connectivity problem

[Corrupted94]

I have just installed a fresh version of Linux Mint 20 on my HP Pavilion and during installation I noticed that some of the files were not able to be retrieved from the repository. I have not successfully been able to connect to any wireless network except for through a proxy on a hotspot but even when I am connected I am having problems upgrade apt. This is what I get after trying to run apt update

Err:1 http://packages.linuxmint.com ulyssa InRelease
Could not resolve 'packages.linuxmint.com'
Err:2 http://archive.canonical.com/ubuntu focal InRelease
Could not resolve 'archive.canonical.com'
Err:3 http://archive.ubuntu.com/ubuntu focal InRelease
Could not resolve 'archive.ubuntu.com'
Err:4 http://security.ubuntu.com/ubuntu focal-security InRelease
Could not resolve 'security.ubuntu.com'
Err:5 http://archive.ubuntu.com/ubuntu focal-updates InRelease
Could not resolve 'archive.ubuntu.com'
Err:6 http://archive.ubuntu.com/ubuntu focal-backports InRelease
Could not resolve 'archive.ubuntu.com'
Reading package lists... Done
Building dependency tree
Reading state information... Done
All packages are up to date.
W: Failed to fetch http://packages.linuxmint.com/dists/ulyssa/InRelease Could not resolve 'packages.linuxmint.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/focal/InRelease Could not resolve 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/ ... /InRelease Could not resolve 'archive.ubuntu.com'
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/ ... /InRelease Could not resolve 'archive.ubuntu.com'
W: Failed to fetch http://security.ubuntu.com/ubuntu/dists ... /InRelease Could not resolve 'security.ubuntu.com'
W: Failed to fetch http://archive.canonical.com/ubuntu/dis ... /InRelease Could not resolve 'archive.canonical.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.