 | 1 | initial version |
Try doing
tcpdump -i en0 -I
and see if you get any traffic.
If not, this is an issue with macOS, not with Wireshark, so go to the Apple bug reporter. If you don't have an account, create one. Then file a bug on this; include the full result of "System Report" from "About This Mac" (you can save from there).