Why not? I netblock everything from .ru and .cn from my own servers. It's the way to go.
I was able to get around this is by changing the login POST to use nvidia.com and everything worked just fine, and the ping to .com was obviously faster.
It is lightyears beyond dumb that this is even legal in the USA.
Would love to be talked down from this with a rational explanation.
NOTE: This happened in 2021
When it failed I opened devtools and saw the .cn attempt.
Portscans and SSH bruteforcing are not necessarily the problem, but they can be preludes to a problem.