You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

"The cable for USB 10/100/1000 LAN has a self-assigned IP address and will not be able to connect to the internet."

I got this message in the Network control panel of my Macbook Air after turning off WiFi and connecting a Wavlink "plug & play" ethernet adapter. Even though it recognized the cable/adapter -- it said "connected" -- there was no internet. Wavlink tech support suggested an involved procedure involving changes in the Mac Library. The internet cable was plugged directly into the modem. Remarkably, when I instead plugged the Wavlink cable into a multiport ethernet breakout box (Netgear FS105) that was plugged into the modem, it fixed the problem! I have no idea why the indirect connection worked when the direct modem connection didn't.

MacBook Air 13″, macOS 11.3

Posted on Sep 27, 2021 11:14 AM

Reply
Question marked as Top-ranking reply

Posted on Sep 27, 2021 11:15 AM

Because the modem is not acting as a DHCP server.

Similar questions

1 reply

"The cable for USB 10/100/1000 LAN has a self-assigned IP address and will not be able to connect to the internet."

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.