Failed to read artifact descriptor in working maven project

Question

I recently changed laptops at work and my working mvn project no longer can find some of its artifacts. I added an entry into /etc/hosts, most people in my organization have (essentially) empty settings.xml files, and I am using my old .ssh keys + config. I can see the nexus repository in my browser using SwitchyOmega.

What am I missing here? Do I need to configure a proxy in settings.xml? This wasn't necessary before. Are .ssh key's machine specific so I need to redo mine (and not just copy them)? Thanks!