![]() It not only tests ethernet and wifi, but also any other supported internet connection, ethernet over USB, VPN connections, even a FireWire network conneciton. ![]() The new Network Interfaces test can test any connected network interface for errors. If the ethernet or wifi adapters in your Mac aren’t working, the valuable connection to the internet can fail. Network Interfaces – Most Macs spend the majority of their lives connected to the internet.Make sure that not only your input devices, but also your audio and fitness devices can connect to your Mac by checking the Bluetooth hardware on your Mac. Verify the proper operation of your Mac’s Bluetooth hardware. Bluetooth problems can result in dropped connections with those devices, which can be very frustrating. ![]()
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