12

I have a 75 Mbit/s Wifi connection and the Wifi generally works great and fast. Although if I connect to any bluetooth device (e.g. some Audio device) the Wifi suddenly slows down significantly, but I still have a strong signal.

I am currently running Ubuntu 14.10 with Unity on a Dell Vostro V131

Is the bluetooth interfering with the Wifi, or is it a Hardware/Software problem?

If there are any outputs you need to see please let me know.

Thanks in advance!

YumTum
  • 353
  • 1
  • 3
  • 12

3 Answers3

12

There is one thing that might help, and that is to disable bluetooth coexistence in the iwlwifi module

sudo modprobe -r iwlwifi
sudo modprobe iwlwifi bt_coex_active=N

If it works, you can make it persistant with echo "options iwlwifi bt_coex_active=N" | sudo tee -a /etc/modprobe.d/iwlwifi.conf

If it causes problems, just sudo modprobe -r iwlwifi

sudo modprobe iwlwifi
Jeremy31
  • 13,293
3

Try hooking your wifi or bluetooth adapter into a USB extension cable and running that away from the other adapter.

I have a Trendnet TBW-105UB bluetooth adapter and a D-Link Dwa 552 wifi adapter and was experiencing this problem until I simply moved the two apart.

Surprisingly, problem resolved.

Credit to @waterlubber for this simple fix. I would have upvoted his comment but don't have the reputation.

user3751385
  • 161
0

Connect first Bluetooth device and than turn on the wifi. It works for me

Vali
  • 1