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Since upgrading to Ubuntu 13.10, (currently installed 14.04) activating bluetooth makes my wireless extremely slow (halt). I managed to fix the problem recently with the help of this topic: Wifi slows down if I connect with Bluetooth device on Ubuntu 14.10

However, the same problem appeared again today: I can either have bluetooth or wifi but not both at the same time.

Any help would be greatly appreciated!

edit, output of the two commands:

lspci -knn | grep Net -A2

02:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6230 [Rainbow Peak] [8086:0091] (rev 34)
    Subsystem: Intel Corporation Centrino Advanced-N 6230 AGN [8086:5201]
    Kernel driver in use: iwlwifi

lsusb

    Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
    Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 001 Device 004: ID 05ca:18c0 Ricoh Co., Ltd 
    Bus 001 Device 003: ID 08ff:168f AuthenTec, Inc. AES1660 Fingerprint Sensor    
    Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
  • Please edit your post and add output of lspci -knn | grep Net -A2 and lsusb terminal commands. – Pilot6 May 31 '15 at 15:25
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With the iwlwifi module there is a bluetooth coexistence parameter that is set to enable by default but since it doesn't seem to be working for you, we can disable it with

echo "options iwlwifi bt_coex_active=N" | sudo tee -a /etc/modprobe.d/iwlwifi.conf

Reboot and see if it works better

  • Thank you Jeremy31! This solved the problem. I first had to restart bluetooth: sudo service bluetooth restart and then edit the iwlwifi.conf as you suggested + restart the computer. – Jaakko Manninen Jun 5 '15 at 6:28

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