Ubuntu: Can't connect to one wifi network, keeps asking for password


Here's the relevant syslog stuff: http://pastie.org/9405812

Here's the output from the wireless-info script: http://paste.ubuntu.com/7821949/

My wifi works well in general, I only have problems with this network. The router is a netgear wnr1000v2-vc. It may be possessed.

Things I've tried: Disabling power management, reboot, satanic ritual, rebooting a second time, giving up, deciding not to give up after all, posting on ask ubuntu


First remove all special characters from the network name.

Now, check the settings in the router. WPA2-AES is preferred; not WPA and WPA2 mixed mode and certainly not TKIP. Second, if your router is capable of N speeds, I have better luck with a channel width of 20 MHz in the 2.4 GHz band instead of automatic 20/40 MHz.

I also have better luck with a fixed channel, either 1, or 11, rather than automatic channel selection. After making these changes, reboot the router.

Next, I recommend that your regulatory domain be set explicitly. Check yours:

sudo iw reg get  

If you get 00, that is a one-size-fits-all setting. Find yours here: Country Code Then set it temporarily:

sudo iw reg set IS  

Of course, substitute your country code if not Iceland. Set it permanently:

gksudo gedit /etc/default/crda  

Use nano or kate or leafpad if you don't have the text editor gedit.

Change the last line to read:


Proofread carefully, save and close the text editor.

Next, I'd set IPv6 to Ignore in Network Manager: IPV6 setting This example is for ethernet, but you want wireless.


Try delete that wifi connection from the Network Connections list (wifi icon).

Then restart wireless with sudo service network-manager restart


add this option in kernel drivers settings

echo options iwlwifi 11n_disable=1 | tee -a /etc/modprobe.d/iwlwifi.conf  

Then restart the system this must fix wifi problem.

Note:If u also have question or solution just comment us below or mail us on toontricks1994@gmail.com
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