---
title: "2.4 vs 5 vs 6 GHz Wi-Fi on Mac: which band your Mac uses · Kilobat Guides"
url: "https://kilobat.app/guides/wifi-bands-2-4-5-6-ghz"
description: "How the 2.4, 5 and 6 GHz Wi-Fi bands differ, how to see which band your Mac uses, and how to set up the router so the Mac picks the best one."
---

Wi-Fi

# 2.4 GHz, 5 GHz and 6 GHz Wi-Fi on a Mac

Wi-Fi uses three bands. Each band gives a different balance of range and speed. The Mac selects the band, but router settings control which bands it can use.

Applies to: macOS 13 Ventura and later. The Wi-Fi 6E mode setting needs a Mac that supports Wi-Fi 6E. · Checked: 29 October 2026

## Symptoms

- The Mac connects on 2.4 GHz and is slow, even near the router.
- The network shows a message about limited compatibility.
- You see two or three networks with almost the same name, one for each band.

## Likely causes

- **2.4 GHz reaches farther but is busy.** Apple says that 5 GHz signals do not go through walls as well as 2.4 GHz signals. Bluetooth also uses 2.4 GHz.
- **5 GHz and 6 GHz are faster but shorter range.** The cells are smaller, so the signal drops faster through walls.
- **Different names for each band.** Apple says that different names can make devices connect unreliably. Wi-Fi 6E networks with different names show limited compatibility.
- **The Mac or the router does not support a band.** 6 GHz needs a Mac and a router that support Wi-Fi 6E or Wi-Fi 7. 6 GHz is not available in all regions.

## How to check

1. Hold the Option key and click the Wi-Fi icon. Read the channel and band of the network.
2. Show the band and channel width from Terminal.

   ```
   system_profiler SPAirPortDataType | grep -m1 'Channel'
   ```

   Output For example `Channel: 36 (5GHz, 80MHz)`.
3. Show the Wi-Fi modes and channels that this Mac supports.

   ```
   system_profiler SPAirPortDataType | grep -E 'Supported PHY Modes'
   ```
4. Look at the list of Macs in Apple's Wi-Fi 6E article. Make sure that your Mac supports 6 GHz.

## How to fix it

1. In the router settings, turn on all bands that the router supports.
2. Give all bands one network name. Apple recommends a single, unique name for all bands.
3. Set the channel to Auto. On 2.4 GHz, use a channel width of 20 MHz.
4. For 6 GHz, set the security to WPA3. Apple says that WPA3 is required for 6 GHz.
5. To stop the Mac from using 6 GHz on one network, choose System Settings > Wi-Fi. Click Details next to the network.
6. Then set Wi-Fi 6E mode to Off. This setting shows only on a supported Mac connected to a Wi-Fi 6E or Wi-Fi 7 network.

## With Kilobat

1. Show the current band, channel and signal.

   ```
   kilobat wifi status
   ```
2. List nearby networks with their band, channel and channel width.

   ```
   kilobat scan
   ```
3. When Bluetooth devices share 2.4 GHz with the Wi-Fi, the Kilobat Wi-Fi menu marks them. It also offers a known 5 GHz network.

## Questions

**Which band is best?**

Near the router, 5 GHz or 6 GHz is usually faster. Far from the router or through many walls, 2.4 GHz can keep a connection where the others cannot.

**Can I force the Mac to use 5 GHz?**

macOS has no general band setting. Give all bands one name and let the Mac select. The Wi-Fi 6E mode setting only turns off 6 GHz.

## Sources

- [Apple Support: Use Wi-Fi 6E or Wi-Fi 7 networks with Apple devices](https://support.apple.com/en-us/102285)
- [Apple Support: Recommended settings for Wi-Fi routers and access points](https://support.apple.com/en-us/102766)
- [Apple Platform Deployment: Optimize your Wi-Fi networks for Apple devices](https://support.apple.com/guide/deployment/optimize-your-wi-fi-networks-dep2af1caf35/web)
- [Apple Support: Use the Wi-Fi status menu on Mac](https://support.apple.com/guide/mac-help/use-the-wi-fi-status-menu-on-mac-mchlfad426fa/mac)

Sources checked on 29 October 2026. Man pages are the ones installed with macOS; open one with `man <name>` in Terminal.

## Related guides

- [Bluetooth headphones and Wi-Fi interference on a Mac](https://kilobat.app/guides/bluetooth-wifi-interference): Bluetooth and 2.4 GHz Wi-Fi use the same radio band.
- [Crowded Wi-Fi channels near your Mac](https://kilobat.app/guides/wifi-channel-congestion): Networks on the same channel share the air time.
- [Wi-Fi is slow on the Mac but fast on the phone](https://kilobat.app/guides/slow-wifi-mac-fast-phone): When the phone is fast on the same network, the internet connection is not the problem.
- [Weak Wi-Fi signal on a Mac](https://kilobat.app/guides/weak-wifi-signal-mac): Signal strength and noise decide how fast and how stable the Wi-Fi link is.