Right button My Computer-management---Device Manager-network adapter expansion, you can see the NIC, right-click on the Properties-advanced-connection speed and duplex mode or (LINK speeds) option, select 100 then we will have a choice of 100M full duplex/half duplex, So what do they mean, then? The difference between full-duplex and half-duplex is this: half-duplex means that only one action occurs in a period of time, like a narrow road, and only one car can pass. If there are two cars off, you can only have one first, and then another one. This means that the network card sending and receiving data cannot be performed simultaneously. and full duplex is the two synchronous, natural efficiency is higher. The current Nic basically works in full duplex mode. Specific to your choice, the general choice is "auto-negotiation (Auto Select)", so that the network card will automatically adjust the connection speed and mode with the switch, maintain maximum compatibility. Half-duplex is not sent at the same time as received. Not receiving full duplex at the same time of sending can send data while receiving data. Data can be received while data is being sent
Local connection speed 100.0mbps to 10.0mbps how to recover
