Monday, December 19, 2022

Disabling AWDL to Work Around Ventura Wi-Fi Issues

Hamza Malik (via Felix Krause, Hacker News):

Meter is currently tracking an issue that is affecting devices on macOS Monterey and macOS Ventura with M1/M2 Macbooks acutely affected — leading to slow internet connection, drops in Zoom calls, and entirely losing a WiFi connection.

Macbooks use a WiFi interface called AWDL (Apple Wireless Direct Link) for features like AirDrop and AirPlay. Having AWDL on may cause your WiFi connection to periodically reset. Although these issues can manifest in various ways, the underlying issue is the same: throughput and speeds drop, devices get disconnected randomly, and fail to rejoin the network.


As an interim solution to improve the WiFi connection, Apple recommends that you turn off AWDL interface (this will disable AirDrop/AirPlay). There are a few ways you can do this — either by using the Terminal application and running a script or through the UI (provided below). We’ve run this intervention with a few customers now that have seen improved WiFi performance as a result.

I have not been seeing the problem on my Macs.

The post says that this may be fixed in macOS 13.1, however the issue is not mentioned in the release notes, and I’ve not seen any comments confirming the fix.


2 Comments RSS · Twitter

I usually see this issue regularly on my MBP running Big Sur. I can go to the following site and there’s a ton of packet delay.


I think their were two different issues:

1) M1 Macs intermittently disconnecting from wifi.
2) all Macs having ping spikes affecting network performance.

I think (1) is what's been fixed.

(2) seems related to the fact that awdl scans on channel 6 on 2.4 Ghz and 149 for 5 Ghz (or 44 in Europe/UK) when looking for local devices for AirDrop and Sidecar. If your wifi isn't running on those channels, your Mac is briefly switching to it and back.

Perhaps your wifi is already running on those channels?


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