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My wifi has stopped working since yesterday. It only starts working when I disable my connection and enable it again. Then it stops working after a couple of second again.

Something is clearly really wrong with my Lenovo Laptop (Broadcom & Ubuntu), but I don't know what. All the drivers are installed and I have tried rebooting and even reinstalling ubuntu. I even installed xubuntu and linux mint but the problem is still there.

How can I fix this?

Dmesg: http://textuploader.com/a0hgx

lspci -vnn | grep Network showed:

02:00.0 Network controller [0280]: Broadcom Corporation BCM43142 802.11b/g/n [14e4:4365] (rev 01)
Kharbora
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  • Check if in iwconfig Power Management is on, see this answer http://askubuntu.com/questions/645835/wifi-is-frequently-disconnecting/646476#646476 – dhiya Aug 08 '15 at 18:37
  • @dhiya It is now set to on. I hope it helps now. Thanks! – Kharbora Aug 08 '15 at 18:44

1 Answers1

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check whether Power Management is on, see this answer

use 

sudo service network-manager restart

to restart wifi

Community
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dhiya
  • 953