ubuntu15.04 Wireless internet problem

Today will notebook installed as a ubuntu15.04, but at first unable to wireless WiFi, can I depressed bad, began to Baidu Bai, and then found some of the footsteps of the predecessors

sudo iwlist wlan0 scan To find the Essid, like Chinanet. Suppose password 1234567890 sudo iwconfig wlan0 Essid chinanet key 1234567890 sudo dhclient wlan0

And then it's an error.

[Email protected]:~$ sudo iwconfig wlan0 essid zzy key zzy123456 Error for wireless Request "Set Encode" (8B2A): SET failed on device wlan0; Invalid argument.

Then Baidu search solution, find the answer of the Netizen

I also encountered the same error code The system is 10.04, the problem is that Ubuntu does not support the WPA encryption method. Configure the AP to connect without a password, then use iwconfig wlan0 essid XXX connection is successful The AP password is all numbers, will not error, but still not connected The AP password is the letter plus the number, it will report the landlord's error The solution is to use wpasupplicant software: #wpa_passphrase ESSID PWD > xxx.conf #wpa_supplicant-B-i wlan0-dwext-c./xxx.conf #iwconfig Wlan0 #dhclient Wlan0

Then just follow as above, the result is still not on the net, the collapse of ... And then you want to restart it.

And then restart it, and actually get on it ...

Thanks to all the Almighty netizens here

Links to Wireless settings are also attached here https://wiki.archlinux.org/index.php/Wireless_network_configuration_%28%E7%AE%80%E4%BD%93%E4%B8% Ad%e6%96%87%29

I hope we can make less detours

ubuntu15.04 Wireless internet problem