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