Wi-Fi

MacBook Air (Retina, 13-inch, 2020): Wi-Fi specifications and connection checks

Apple specifies 802.11ac Wi-Fi for this Intel model. The M1 MacBook Air introduced later in 2020 has different Wi-Fi.

Applies to: MacBook Air (Retina, 13-inch, 2020). Settings names vary by macOS version.Checked: 2 November 2026

Symptoms

  • Wi-Fi is slow or disconnects.
  • The Mac does not join the expected network or band.

Likely causes

  • A network or signal problem. Distance, interference or the router can affect the connection.
  • A compatibility or configuration problem. The router and Mac must support the same band and security settings.

How to check

  1. Choose Apple menu › About This Mac and confirm the model before using these specifications.

  2. Apple lists 802.11ac, with compatibility for 802.11a, b, g and n. This model is not on its Wi-Fi 6E list.

  3. The rate negotiated with a router depends on the radio standard, channel width and signal. It is not an internet speed guarantee.

  4. Check another device on the same network. This helps separate a Mac issue from a network issue.

  5. Open Wireless Diagnostics from the Wi-Fi menu. See Use Wireless Diagnostics and wdutil on a Mac.

  6. Compare signal and channel conditions. See Crowded Wi-Fi channels near your Mac.

How to fix it

  1. Move closer to the router, then test again.

  2. Check the router’s band and security settings. See 2.4 GHz, 5 GHz and 6 GHz Wi-Fi on a Mac.

  3. If Wi-Fi connects but internet access fails, follow Mac connected to Wi-Fi but no internet.

The exact menus for your router, from FRITZ!Box and Xfinity to eero and Livebox: router guides.

Questions

What Wi-Fi does the MacBook Air (Retina, 13-inch, 2020) support?

Apple specifies 802.11ac, commonly called Wi-Fi 5. The later M1 model supports Wi-Fi 6.

Does a supported band guarantee a fast connection?

No. Signal, interference, router settings and the internet connection also affect results.

Sources

Checked on 2 November 2026.