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I cannot stop channel hopping on latest ubuntu, on aircrack website it sais that newotk managers or similar programs cause this...when launching airmon-ng it warns me that processes like dhcpi, network-manager can cause problems.

I tried to kill these processes with sudo kill -9 pid but the processes are immediately restarted.

I am using the ath9k driver.

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It does somewhat depend on the driver, but stopping all services noted in airmon-ng output should help. –  hbdgaf Aug 8 '12 at 22:06
Does this work if you roll back to an earlier kernel? –  belacq Aug 9 '12 at 0:27

2 Answers 2

This should stop the network-manager, but I'm not sure if it will solve the issue:

sudo service network-manager stop

From: http://ubuntuforums.org/showthread.php?t=1481660

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Should I installl compat-wireless ? –  alal Aug 8 '12 at 22:08
Kling the process didn't help...what should i do ? –  alal Aug 8 '12 at 22:28
Sorry, I never found a good solution to the channel hopping problem. –  Jeff Aug 8 '12 at 22:39

You will need to stop their services, not simply kill the process. Here's what you can do:

sudo service avahi-daemon stop
  • This stops the avahi-daemon.
sudo service network-manager stop
  • This stops Network Manager.
sudo wpa_cli -i wlan0 terminate
  • This should kill wpa_supplicant on your wlan0 interface.
sudo kill -9 dhclient_pid
  • Replace dhclient_pid with the pid of dhclient.

I suggest not executing all of these at once, but instead execute one and then check the channel hopping.

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