Mac Wi-Fi disconnects when Bluetooth is on

Question

Mac Wi-Fi disconnects when Bluetooth is on

Hi All,

I’ve been facing a strange issue with my Mac over the past few days. Whenever Bluetooth is turned on—whether it’s connected to a device or not—my Wi-Fi drops repeatedly and eventually disconnects.

I’ve tested this across multiple Wi-Fi networks, and the issue seems to be with my Mac itself.

Here’s what I’ve already tried:

Rebooting the Mac
Toggling Wi-Fi and Bluetooth off/on
Resetting the Mac and even reinstalling macOS via Internet Recovery (without restoring data)
Resetting Wi-Fi and Bluetooth modules through Terminal

Everything works fine right after the reset—until I sign in with my iCloud ID. After that, the issue returns.

I’ve also heard that a few other Mac users have been experiencing similar behavior recently, so I’m wondering if this is a broader issue.

Has anyone else encountered this or knows what might be causing it? Any insight or suggestions would be really helpful.

Thanks in advance!

MacBook Pro 13″, macOS 15.7

Posted on Nov 28, 2025 8:02 PM

Reply

Answer 1

Nov 29, 2025 9:59 AM in response to sanchitbhatia97

Why do I have difficulty with Wi-Fi or Bluetooth devices when USB 3 devices are attached to my computer?

Some USB 3 devices can generate radio frequency interference that can cause Wi-Fi and Bluetooth devices operating in the 2.4GHz band to have issues communicating with your computer. Here are some tips to avoid this issue:

• If your USB device has a cable long enough that you can move the device, place it away from your Mac—and make sure not to place it behind your Mac, or near the hinge of its display. The antennas for Wi-Fi and Bluetooth are located there, and USB 3 devices placed there might interfere with your wireless connections.

• If you're using adapters or dongles on a Mac computer with Thunderbolt 3 (USB-C) ports, plug them into the front port on the left side of your Mac, or into the ports on the right side (if your computer has them). These ports are the farthest away from the antennas, making interference less likely.

• To avoid interference on the 2.4GHz band using Wi-Fi, try using the 5GHz band instead. You can change this on your wireless base station. Bluetooth always uses 2.4GHz, so this alternative isn't available for Bluetooth.

from:

About USB on Mac computers - Apple Support

Resolve Wi-Fi and Bluetooth issues caused by wireless interference

Resolve Wi-Fi and Bluetooth issues caused by wireless interference - Apple Support

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Answer 2

Nov 30, 2025 8:04 AM in response to sanchitbhatia97

Lets take a look at your Wi-Fi/Bluetooth environment with Wireless diagnostics:

Hold down the Option key while you click on the Wi-Fi icon on the menubar to open up the tools for investigating and fixing Wi-Fi issues

First is "Open Wireless diagnostics", which opens the wireless diagnostics Assistant, but does not proceed.

NB> Wireless Diagnostics is an App that puts up its own MenuBar.

Using its Window menu, there are about eight different things you can do from here, but the top-level is to choose Diagnostics off the Window menu, or simply click (Continue) to do a quick check for Gross misconfiguration or operating problems. Your Admin password will be required. If any recommendations are shown, you should consider then seriously.

Next is to hold down the Option key and click the Wi-Fi icon as before. The screen that opens shows operating parameters of your Wi-Fi network. Screenshot, transcribe, or photograph the results and post back in a reply on the forums. Looks like this older one.

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Answer 3

Nov 29, 2025 10:04 AM in response to sanchitbhatia97

The reason we talk about Wi-Fi and Bluetooth at the same time is that Bluetooth uses the same part of the frequency spectrum as Wi-Fi 2.4 GHz, it just does frequency-hopping instead of using an entire group of channels with way Wi-Fi does.

If you are using 2.4 GHz Wi-FI, and Bluetooth knocks it off the air, there may be a Wi-Fi problem just made worse by adding Bluetooth data.

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Answer 4

Nov 29, 2025 10:32 PM in response to Grant Bennet-Alder

Hi Grant,

Thank you for your reply.

Here’s an update on the issue:

No USB devices are connected.
Bluetooth is on, with the Magic Mouse 2 connected and working fine.
I have signed out of my iCloud account.

With this setup, both Wi-Fi and Bluetooth are working seamlessly.

My assumption is that when I sign back into iCloud, all devices linked to the same Apple ID attempt to communicate with each other, which may be interrupting the Wi-Fi signal. It feels more like a software-related conflict.

Do you have any suggestions on how to resolve this? I rely heavily on features like Sidecar and Universal Clipboard, so staying signed out of iCloud isn’t ideal.

Thanks again.

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