I just booted up my PC, and my PCI network card isn’t working anymore.
What is the most effective method for determining whether this is a software or hardware issue?
If you suspect that the problem is OS related, you can try booting into another distro on USB, just to diagnose.
If this works ok, then you can look at your logs to see if the OS reports some problem.
With this info, you can make some decision or at least ask again with more data.
Thank you for the suggestion, I used a live distro and it was indeed hardware related.