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Having Ubuntu 9.10 WIFI Problems?

Apparently the new version of Ubuntu broke compatibility with a lot of wifi adaptors, including some relatively new USB adaptors. If you have upgraded to 9.10 but are having problems seeing and/or connecting to your wireless network you may want to try the following:

1. Open the update manager
2. Click the settings button
3. Click the updates tab
4. Check the “Unsupported updates (karmic-backports)” checkbox
5. Open a terminal and type (and reboot):

sudo apt-get install linux-backports-modules-karmic


Anonymous said...


I was lost and frustrated with Wifi under 9.10 till I saw your post. Spot-on what I needed. Thank you my brother!


Daniel Auger said...

Glad I could help! I literally wasted 8 hours or so on this (multiple reinstalls etc...).

pj aranda said...

Thanks bro for the solution. It nearly caused me a great trouble with my organization

Anonymous said...

Your the man.. I was also lost till I saw this post..

Anonymous said...

i am having this issue also, trouble is my laptop also has bluetooth, ubuntu 8.10 works fine, i have now upgraded to 9.10 and it recognises bluetooth but not wifi, even after i done what was said in your post

Sejanus said...

I had the same problem but found a different work-around. I have a hidden SSID and my HP TC4200 wouldn't connect to it. What I did notice was that the WiFi connection was working as it could see various base stations around me. I then tried rebooting from my USB Stick and found that would connect to the hidden WiFi quite happily.

My guess was that it was some kind of permissions problem, so I re-installed from scratch, made sure I had activated the root password and then immediately did a 'Connect to Hidden Wireless Network'. That still didn't connect but I then edited the profile to provide a fixed IP address for the laptop and a path to the router and DNS. The connection started up and happily survived a reboot.

I hope this helps someone else out there avoid a wasted afternoon. :-)))

Anonymous said...

Thanks very much, sorted me out too.

Anonymous said...

My problem seems it will not properly detect my wifi card. Strange because bluetooth seems to work both should be the same card.HP Touchpad Tx2 laptop

wenna webb said...

Such a great information and I've been looking for this..

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