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Ubuntu-Wifi not working

+1 vote
82 views
asked in Programming by Andy
Suddenly my Wifi of Ubuntu gets invisible  now not able to see enable Wifi option in the menu after clicking on network and even I have restated several times . can you please help me why all Wifi connections are invisible or any solution for this rather than re install the OS?

1 Answer

0 votes
answered by Ankur Dutta

I was facing the same problem my wifi option was not coming , then I googled and found this solution you need to just execute these commands and your problem will be solved.

Note: Before executing these command you need to connect to the internet you can connect via LAN cable ,LAN was working in my case may be your LAN would also work.

There are no. of commands which you can try one by one.

1.

sudo apt-get update && sudo apt-get upgrade

Now restart your machine. Done!!! check your wifi now.

if not worked go for 2

2.

sudo apt-get install linux linux-headers-generic kernel-package

sudo apt-get install --reinstall bcmwl* firmware-b43-lpphy-installer b43-fwcutter

 Now restart again , problem should be solved.

In case it also wouldn't work , try this final command 

3.  

sudo apt-get remove bcmwl-kernel-source

sudo apt-get install firmware-b43-installer b43-fwcutter

sudo reboot

 

Now check your wifi , It should work now...  BTW my problem was resolved by 1. and 2.  command only.

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