I just got a new Macbook Air and a new Airport Extreme, both of which support 802.11ac.
Is there an easy way to tell if my Macbook Air is connecting to the Airport Extreme via 802.11ac? Relatedly, can I tell if I'm connecting at 5GHz band or 2.4GHz band?
I've already done a speedtest, and the results are inconclusive.
Best Answer
When you're connected to the Wi-Fi network, hold down option and click the Wi-Fi icon in the OS X menubar. You'll see additional details about your connection, including one item labelled
PHY Mode:. That will show you whether you're connected via 802.11ac, n, g, etc.There's also a
Channel:entry that tells you the radio frequency and channel.