Don’t bother with the cert if it’s not your job, but at least look into CCNA Routing and Switching. There are tons of courses available, both in person and online, as well as numerous YouTube videos on the subject.

See if your local library or community college has an adult education center that provides a course. At some point, you will need to learn subnetting, which is just math, but practice makes perfect, and your life is easier if you have it committed to memory.

Proper written work is still one of the most effective ways to do this.

While true, it’s pretty asinine to hold companies operating in China accountable for complying with Chinese law. It sucks, but they aren’t just going to abandon the Chinese ~cash cow~ market.