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When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.
I have been using my 16" inch MacBook Pro for the past few days and after few days of using, it stopped connecting to any wifi in my house or hotspot made by my iPhone except a connection with 5GHz.
I don't know why it's happening. I have done everything including resetting SMC and even reinstalling macOS. Still the issue is unsolved.
If anyone has the same issue and got a solution for this , let me know.
MacBook Pro 16″, macOS 10.15
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
https://support.apple.com/en-us/HT201542
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
https://support.apple.com/en-us/HT201542
Thanks for the reply grant bennet.
The issue is I'm not using any USB 3.0 device nor any dongle. Its just macbook and no accessory.
And few days back the laptop which had no issue Is now not responding like it used to do.
Hoping for some other solution or answer to this.
Using any Bluetooth devices?
Have any USB-3 or bluetooth device near your Router?
There was a display that threw off so much radiation it knocked Routers off the air.
Wifi working on 5GHz but not on 2.4GHz.
