
Hence, it is advisable to first reboot your router by simply unplugging the adapter for a few minutes and plug it back. The fault might also be from the Wireless router supplying Internet access. This is because though the slow Wi-Fi on Mac has been pinned to occur after an upgrade to Sierra OS, it does not necessarily mean that it would be the sole cause of a slow Wi-Fi.

If the problem remains unsolved, you should consider either rebooting or resetting your W-Fi router. To do this, click on Wi-Fi menu bar > select Turn Wi-Fi Off > Turn off Bluetooth adapters on your MacBook > Restart your MacBook and try to reconnect. This can be easily done by disconnecting it from the wireless network. One of the first solutions to slow Mac Wi-Fi is to first restart your Mac’s Wi-Fi connection. Solution 1: Reset Wi-Fi Router and Restart Mac Wi-Fi Connection Remove Existing Wi-Fi Preferences in Mac OS Sierra


Solution 1: Reset Wi-Fi Router and Restart Mac Wi-Fi Connection.
