師傅係未同你用同一條線試. 如果係,你可以去Control Panel > Network and Sharing Centre > Change adapter settings > 揀返你個network adapter > Properties > Configure... > Advanced > Speed & Duplex > 唔好揀Auto negotiation, 揀1.0Gbps Full Duplex / 2.5Gbps Full Duplex. 你既情況有時係呢個settings 個auto negotiation 唔work而發生.