Ubuntu – Wifi works but doesn’t start automatically on ubuntu 11.10

kernelwireless

Good evening everyone, I have got an issue which I hope you will help me to solve.
I was trying to update my Kernel in ubuntu from this web-site
http://kernel.ubuntu.com/~kernel-ppa/mainline/v3.2-rc4-oneiric/
And everything went smooth. But, for some reason, my wifi doesn't work in new Kernel so I decided to switch back to my old one 3.0.0-17 generic and to my surprise WIFI doesn't start automatically eventhou it was working. What I mean is that I have to click on wifi icon and put a mark Enable Wireless.

This is not a really serious issue but I don't like switch on everytime at log in my WIFI because before that it was working when system started.

What is the cause of this and how to fix it.

Thank you very much for you help.

Best Answer

You may be have a common issue with a clash between the asus-wmi kernel module and your asus driver.

Suggestion - copy and paste (line by line) the following into a terminal:

sudo modprobe -r asus-wmi

cd /etc/modprobe.d

sudo nano blacklist.conf

Then add blacklist asus-wmi as a new line at the end of the file.

Save and reboot.

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Open a terminal and try running this command:

This command will create a file named ath9k.conf in the folder /etc/modprobe.d that will contain the line "options ath9k nohwcrypt=1".

echo 'options ath9k nohwcrypt=1' | sudo tee -a /etc/modprobe.d/ath9k.conf

Reboot and try connecting to the network again. Please post any errors or if this fails to work.

click here to visit the source

Another thing you can do is to click on your network icon on your panel. Then, click on edit connections. Click on and delete any and all networks listed. Sometimes you may have a bad network configuration screwing things up so it's best to start fresh.

Also, you say you also do not have ethernet. Do you have ports 68 and 67 open? You need these ports open for DHCP to assign an IP to your laptop.

Does your router allow you to set a static IP without using DHCP? If so, you can set a static IP by clicking on the network icon on your dash. Then, click "Edit connections"; click on the wireless network and then click "edit"; click on "ipv4 settings"; change "Mode" from "automatic" to "manual" and then click "add". Use tab to navigate from Address to Netmask and then to Gateway.

Hint: you can easily get these numbers by booting up a live session from the Ubuntu installation DVD or USB (if wifi works). Click on the network icon on your dash and then click "connection information". You can then get a pad and paper and write these down.

"Address" is the static IP for the laptop you would like to set (for example: 192.168.1.44).

"Netmask" is usually 255.255.255.0 but it may differ depending on your router settings.

"Gateway" is usually 192.168.1.1 but it may also differ depending on your router settings.

Finally, DNS should be set to either the same IP as your Gateway (here in this example it would be 192.168.1.1) or to the IPs of DNS servers separated by a comma. For example, google dns is = 8.8.4.4,8.8.8.8

Click "save". If you cannot click save, click "cancel" and try again.

Run the following command to restart network-manager:

sudo service network-manager restart

Best Answer

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