Cant connect wifi (Centrino Wireless-1000)

**Aerozy** · January 9th, 2013

Originally Posted by chili555

I suggest you remove the USB and then try these commands:

Code:

sudo modprobe -r rt2800usb
sudo modprobe -r iwlwifi
sudo modprobe iwlwifi 11n_disable=1 bt_coex_active=N

Then tell us if you are able to connect with the internal device only.

Woow, it works now!. Now I can connect without USB.

Is this is required every reboot?
What are the CONSEQUENCES of disabling 11n?

**chili555** · January 9th, 2013

The consequence is that you won't be able to get N speeds. Hopefully, you are not streaming Blu-Ray over your network to a laptop.

It will not be required on every boot if you write one file:

Code:

gksudo gedit /etc/modprobe.d/iwlwifi.conf

A new empty file will open. Type in one line:

Code:

options 11n_disable=1 bt_coex_active=N

Proofread, save and close gedit.

Please use thread tools to mark Solved.

**praseodym** · January 9th, 2013

Now you can make it permanent:

Code:

echo "options iwlwifi 11n_disable=1 bt_coex_active=N" | sudo tee /etc/modprobe.d/iwlwifi.conf

Edit: Seconds too slow

**Aerozy** · January 9th, 2013

Originally Posted by chili555

The consequence is that you won't be able to get N speeds. Hopefully, you are not streaming Blu-Ray over your network to a laptop.

It will not be required on every boot if you write one file:

Code:

gksudo gedit /etc/modprobe.d/iwlwifi.conf

A new empty file will open. Type in one line:

Code:

options 11n_disable=1 bt_coex_active=N

Proofread, save and close gedit.

Please use thread tools to mark Solved.

Originally Posted by praseodym

Now you can make it permanent:

Code:

echo "options iwlwifi 11n_disable=1 bt_coex_active=N" | sudo tee /etc/modprobe.d/iwlwifi.conf

Edit: Seconds too slow

Thank you guys, i really apreciate your help.
Solved!

**xastey** · February 9th, 2013

Originally Posted by Us3r Unfriendly

You have 2 drivers running at the same time...might be conflicting with eachother possibly. Looks like you need the "iwlwifi" module. Have you tried removing the other?

sudo modprobe -r rt2800usb

Then removing the other and inserting it back in?

sudo modprobe -r iwlwifi

sudo modprobe iwlwifi

then try again to connect using network manager

Thank you very much, this fixed my Toshiba P855 I just purchased, had to adapt which driver I removed but worked. THANKS