Sudo defaults write /Library/Preferences/us. eveusb_log_trace_urb 1 Sudo defaults write /Library/Preferences/us. eveusb_log_level 4 Sudo defaults write /Library/Preferences/us. daemon_log_level 4 To enable ten, open the Terminal and execute these commands: In any case, it’s good to have the debug logs in hand, so you can check them and see what the problem is. You’ll be able to use the app whenever you need to extend a USB peripheral across your network or use some device attached to a remote PC with no error messages popping up. Now, at the very bottom of the General tab, find the message saying ‘System software from developer Electronic Team was block from loading.’ Click the Allow button next to this message, and the required FlexiHub’s kernel extensions will be automatically downloaded and install.

To fix this minor nuisance once and for all, open your machine’s System Preferences and choose Security & Privacy. And all of those KEXTs must be manually approved by the machine’s user, or else they won’t be even downloaded, let alone installed or used.

This situation mainly happens because FlexyHub is an advanced professional-grade app that contains multiple third-party kernel extensions (KEXTs). In some rare cases, after you’ve installed FlexiHub on High Sierra 10.13 version (or newer ones) and launched the app for the first time, you may see this message:

Known USB-Ethernet connectivity issues and how to fix them on Mac

Can mac ethernet work with usb adapter