Why Your iPad’s Wi‑Fi Lags: Uncovering the AWDL Culprit and How to Fix It
This article explains why iPads and M‑series MacBooks experience high Wi‑Fi latency during games, identifies Apple’s AWDL protocol as the cause, and provides step‑by‑step instructions to disable AWDL on both macOS and iOS devices.
Fault Phenomenon
iPad Pro or iPad mini often show high latency on Wi‑Fi, especially during online games such as Honor of Kings, where latency frequently spikes to 460 ms. Similar network instability can also occur on M1/M2‑based MacBooks.
Root Cause
Extensive lab testing, packet capture analysis, and verification led Aruba to conclude that Apple’s AWDL (Apple Wireless Direct Link) feature is responsible for the issue.
Observed Behavior
When two or more iPads with AWDL enabled are in the same area, they experience periodic high latency and reduced throughput.
If only one iPad has AWDL enabled, its latency and speed are almost unaffected.
Disabling AWDL on an iPad eliminates the latency problem.
Turning off Bluetooth stops AWDL after about one minute.
What Is AWDL?
AWDL (Apple Wireless Direct Link) is Apple’s proprietary Wi‑Fi‑based link‑layer protocol that provides low‑latency, high‑speed point‑to‑point connections. It operates on a dedicated network interface, usually awdl0, and is used for Continuity services such as Universal Clipboard and Handoff.
How AWDL Works
Each AWDL node advertises a series of Availability Windows (AWS) indicating when it is ready to communicate with other nodes. AWDL typically uses fixed Wi‑Fi channels 6, 44, and 149.
Workaround
Apple has not released an official fix; the temporary solution is to disable AWDL.
Disable AWDL on MacBook
sudo ifconfig awdl0 downDisable AWDL on iPad / iPhone
Turn off Bluetooth and disable AirDrop in the Settings interface.
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