Wifi not connecting after restart in Ubuntu 16.04

Asked Jun 27 '16 at 13:04

Active Aug 26 '16 at 13:24

Viewed 6,064 times

After upgrading to 16.04, the wifi is not connecting whenever I restart the system. It shows 'device not ready'. My Wireless interface of Ubuntu is RT3290 Wireless 802.11n 1T/1R PCIe

on iwconfig I got the following

lo        no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=0 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

eth0      no wireless extensions.

Currently to start wifi again I have to shutdown, then boot the system again.

sudo systemctl restart network-manager.service

sudo service network-manager restart

doesn't starts wifi.

How to fix the problem?.

edited Aug 26 '16 at 13:24

asked Jun 27 '16 at 13:04

dhiya

I doubt it, Shutdown and Reboot are exactly identical ! Are you really rebooting? – Sharad Gautam Jun 27 '16 at 13:08
@Sharad Gautam Yep. when I shut down and restart, then no problem. If I restart directly, then no wifi. – dhiya Jun 27 '16 at 13:30
This too related http://askubuntu.com/questions/761180/wifi-doesnt-work-after-suspend-after-16-04-upgrade/761220#761220 – dhiya Jun 27 '16 at 13:38
This my friend is a common problem with many Wifi Adapters. Even with my Windows 10 system (using windows 7 drivers. All you can try is installing different drivers. Good Luck! – Sharad Gautam Jun 27 '16 at 16:33
Disable Secure Boot. – Pilot6 Jul 22 '16 at 13:54
@Pilot6 it is already disabled – dhiya Aug 06 '16 at 10:54
this one also releated http://askubuntu.com/questions/777516/no-wifi-or-enable-wifi-option-after-restart-ubuntu-16-04 – dhiya Aug 06 '16 at 11:41

Wifi not connecting after restart in Ubuntu 16.04

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