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Ethernet speeds historically were measured in 10/100. In my past life I worked for an a small rural isp. And part of my learning I was taught that cat5 was 8 strands of wire, or 4 twisted pairs. I got very familiar with crimping patch cables. If one strand were cut a network card would negotiate down to its lowest speed and still work at 10mbps. Operating on 4 wire or two pairs. It’s possible with those numbers you had a bad connection, or a broken strand in the cable and it auto negotiated down to 10mbps. To this day I still crimp my own cables, and I own a cheap cable tester to make sure the crimps and cables are good.
Golf clap.
https://www.bbc.com/news/world-asia-china-64206950
https://asia.nikkei.com/Business/Business-Spotlight/Samsung-races-to-guard-its-secrets-as-China-rivals-close-in
https://www.axios.com/2018/05/24/china-intellectual-property-ip-theft-trade-war
https://www.bloomberg.com/news/articles/2012-03-15/inside-the-chinese-boom-in-corporate-espionage
https://www.theguardian.com/world/2009/jul/22/germany-china-industrial-espionage