I've also tried Ethernet adapters from other manufacturers and the behavior is also consistent.Īnother curious behavior, is none of the Ethernet Adapter I tested are able to pick up an IP address via DHCP. The behavior is the same regardless of which of the Macbook's USB-C ports I use. I've observed that the router will drop the Belkin Ethernet Adapter whenever I attempt to connect both at that same.
If I unplug the Adapter or turn off WiFi, networking resumes. Similarly, if the Belkin Ethernet Adapter is connected and working and I turn on WiFi, as soon as it connects, all the network stops. When I am connected to the network with WiFI, as soon as I plug in the Belkin Ethernet Adapter all networking stops. I am unable to use Ethernet and Wifi at the same time. 2021 16' Mackbook Pro Ethernet and Wifi not working at the same time I am experiencing and interesting problem with the new 2021 16' Macbook Pro and Belkin USB-C to Ethernet Adapter offered by Apple.