Bluetooth audio crackles while Wi-Fi is busy
How do I fix crackling Bluetooth audio when my laptop's Wi-Fi is also on?
Written by The CommonFixes team · fact checked by CommonFixes review desk
Last updated
Short answer
Bluetooth and 2.4 GHz Wi-Fi share the same slice of radio spectrum, and on most laptops both run through one combo chip and one antenna. When Wi-Fi traffic rises the chip has to interleave the two, and the audio stream loses packets, which you hear as crackle. The quickest thing to try first: move wi-fi onto the 5 ghz band — Connect to your router's 5 GHz or 6 GHz network name instead of the 2.4 GHz one. This removes the overlap entirely and fixes the majority of cases on its own. Most people are done in about 20 minutes.
Full walkthrough below: 6 steps for Windows and Mac, rated medium.
Sounds like this
- •Stutter starts when a download begins
- •Music is clean until you join a call
- •It clears up if you turn Wi-Fi off
Why it happens
Bluetooth and 2.4 GHz Wi-Fi share the same slice of radio spectrum, and on most laptops both run through one combo chip and one antenna. When Wi-Fi traffic rises the chip has to interleave the two, and the audio stream loses packets, which you hear as crackle.
Work through these in order
0% done- 1
Move Wi-Fi onto the 5 GHz band
Connect to your router's 5 GHz or 6 GHz network name instead of the 2.4 GHz one. This removes the overlap entirely and fixes the majority of cases on its own.
- 2
Keep the headphones on the same side as the laptop
Your body absorbs 2.4 GHz signals. Keep the laptop in line of sight, within a couple of metres, and off a metal desk or a USB 3 hub, which radiate noise in the same band.
- 3
Unplug USB 3 devices next to the Bluetooth radio
USB 3 hubs, docks and external drives are a documented source of 2.4 GHz interference. Move them to a port on the other side or use a short extension cable.
- 4
Stop the handsfree profile stealing bandwidth
Settings, Bluetooth and devices, Devices, More devices and printer settings, right click the headset, Properties, Services, and untick 'Handsfree Telephony' when you only need music. The low quality call profile also halves audio quality.
- 5
Update both the Wi-Fi and Bluetooth drivers together
On Intel machines install the Intel Driver and Support Assistant and let it update both, since they share firmware. Generic Microsoft drivers coordinate the two radios badly.
- 6
Turn off radio power saving
Device Manager, expand Bluetooth and Network adapters, open each device, Power Management tab, and untick 'Allow the computer to turn off this device to save power'.
If none of that worked
A small USB Bluetooth adapter on a short extension cable uses its own antenna away from the Wi-Fi chip and reliably ends the interference.
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Who wrote this and how we checked it
The CommonFixes team
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This guide was last updated on 10 August 2026. If a step no longer matches what you see on screen, tell us on the contact page and we will test it again.
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