Q: wifi issues when bluetooth is on

Hi oytunege, 

Thanks for using Apple Support Communities. It appears that you are having some issues with your Wi-Fi signal when you turn your Bluetooth on. I use both Wi-Fi and Bluetooth so I can understand your concern. I know it is important to be able to have a good Wi-Fi signal. I'll be happy to provide some information on this for you. 


Potential sources of Wi-Fi and Bluetooth interference, this article goes over some great information that could be causing some interference between your Wi-Fi network and Bluetooth.  


I recommend booting the Mac into safe mode and then turning on your Bluetooth to see if you notice a difference in the Wi-Fi. To return to your user account from safe mode, simply restart the Mac. 

OS X El Capitan: Start up in safe mode

You can also try this out in another user account to see if this issue occurs only in the main user or if it is system wide.

How to test an issue in another user account on your Mac


Have a great weekend.