If you’re at home you probably have no problem connecting to the Wi-Fi network. That is, you connect to your Wi-Fi network and know that it is the best of all because it is the closest you have and the only one you can possibly access. But if you are in an unknown place, how do you know which is the best Wi-Fi network to connect to?
If you are connected to a Wi-Fi network that is not powerful enough you will experience continuous cuts and very low transfer speeds. Possibly you are connected to the best connection of all, but it never hurts to check it and be sure of it. This is possible thanks to the MacOS Network Diagnostics.
How to use Network Diagnostics in macOS
Step 1: In the menu bar press Alt and click on the Wi-Fi icon
Step 2: Click on Open Wireless Diagnostics …
Step 3: Click on Continue
Step 4: A list of all available Wi-Fi networks will appear
Step 5: On the right side choose Better 2.4 GHz or Better 5 GHz if you have any
Step 6: Automatically macOS chooses the network that has the best signal and the one that can offer the best speed. There are more advanced tools to see this data in detail, although with the default tool of macOS is more than enough.
Far above, the difference between a Wi-Fi network 2.4 GHz and a 5 GHz is that the 2.4 GHz penetrate better between walls and obstacles, however, the 5 GHz is more stable when connecting many devices. At present, the operators usually offer with their routers the two options for the user to choose the one that suits him.
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