Apt-get no longer works

[Ty]

Hello all,

As the subject says, for whatever apt-get no longer works for me. I can 
no longer fetch or download ANY updates/drivers. In both the Terminal 
and "Software Updater" it simply stops after the "Fetched <whatever 
amount of data> in <whatever time>. In the case of the Gnome-software, 
it simply stops trying to download the updates after a few seconds.

Everything network wise works fine. I can connect and download files via 
a web browser without ANY issues, so it has to be something with apt-get.

Not sure if its helps any, but Gnome-software lists an update for 
python-urllib3 and python3-urllib3. Both mention something about broken 
IPv6 brackets.

Can anyone offer any suggestions I can try? Is there a way to download 
these files to see if they are the issue?