I hope this isn't unusual. I like to think I'm at least OK at software development, but my home network consists of a wifi router that I bought in late 2005 from PC World.
Ah, someone who doesn't feel the need to overcomplicate things. When can you start?
While I don’t believe advanced home networking is a good indicator of software engineering skills, I’d at least hope you occasionally check for firmware updates/vulnerabilities and replace it if the manufacturer stopped supporting it. Consumer routers (especially from that era) aren't known for good security (drive-by pharming etc).