Still I do not know the real reason.Īlthough the problem has been solved, I would like to keep this discussion open in case it happened again.Īnd for the next time, I can directly do the steps you asked above and posted it here.
When I came back home, the problem was there. The third time happened yesterday, after I took the MBP to the office and worked the whole day on the internet with another cable. I stopped the "internet Sharing", restarted the MBP twice, and of course, plugging/unplugging was always involved. After I started the "internet Sharing" utilites for a while, suddenly the Ethernet's gone. Some Mac models require an Ethernet adapter, such as the Belkin USB-C to Gigabit Ethernet Adapter or the Apple Thunderbolt to Gigabit Ethernet Adapter. During that period, I restarted the MBP 3 or 4 times and unplugged/plugged the cable many times.Ģ. Connect using an Ethernet cable To use a wired connection to the internet, connect an Ethernet cable from your router or modem to the Ethernet port on your Mac. This time, it recovered itself, again magically, after 2 hour. After the MBP stayed in the sleep mode for about 1 hour, the Ethernet's gone when I woke it up.
The first time happened about one month ago. 5) Manually add in 'USB 10/100/1000 LAN' to your Network Preferences by clicking the. 3) Manually remove 'USB 10/100/1000 LAN' from your Network by clicking the '-' symbol. If you have any other questions, please contact us at. If your issues still persist, move onto Set 2. However, it is the third time this happened:ġ. Follow Set 1 first and test your Ethernet again. Nothing had been changed, but it magically bagan functioning. This problem had been solved somehow, when I deleted the current Ethernet and added another new one.
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