
The reason? Certain USB devices emit wireless signals that can interfere with the Wi-Fi, while devices like USB hubs have been known to outright disable the Wi-Fi port. So the first thing to try is to disconnect your USB devices one by one and see if the Wi-Fi comes back. Quite a lot of Mac users have reported that disconnecting certain USB 3 and USB-C devices have solved their problems. Also, make sure that your Wi-Fi connection is on top of the list.

You can do that by clicking the minus icon. Step 4: Remove all other connections except the Wi-Fi connection you want to use. Hit continue and it will start running tests to find any issue.

Simply open the Spotlight Search using Command + Space keys, type Wireless Diagnostics and open the tool. It can also monitor your wireless connection for intermittent connectivity failures. Wireless Diagnostics is a built-in Mac tool that detects common problems with your wireless connection. If there are any updates available for your router then download the latest firmware and try your luck again. In such cases, you can go ahead and restart your router and check if the Wi-Fi connection is acting stable or not. If your Wi-Fi router is acting up, then you will face Wi-Fi connection issues on all your devices and not just on Mac. If not, then you can skip the next part and jump to point number 3 directly. If the problem is still present even when using an ethernet connection, then it may be a configuration issue with the router, since this eliminates Wi-Fi as a factor.

If you have an ethernet adapter for your MacBook, it’s worth switching off the Wi-Fi and connecting directly to your router.
#Imac no internet connection pro#
MacBook Pro Keeps Disconnecting From Wi-Fiīefore we start with the macOS and hardware-level troubleshooting, it’s always advisable to check with the router first.
