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The Wifi is frequently disconnecting in Ubuntu 15.04. My Wireless interface of Ubuntu is RT3290 Wireless 802.11n 1T/1R PCIe

When wifi is disconnected, on iwconfig I got the following

eth0      no wireless extensions.

wlan0     IEEE 802.11bgn  ESSID:off/any  
          Mode:Managed  Access Point: Not-Associated   Tx-Power=20 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Power Management:off

lo        no wireless extensions.

After each disconnection I have to restart network for reconnection by

sudo service network-manager restart

dhiya
  • 953

1 Answers1

2

Check if in iwconfig Power Management is on.

If yes sudo iwconfig wlan0 power off and see if that helps.

To keep it upon restart do sudo touch /etc/pm/power.d/wireless

tikend
  • 712
  • @ tikend. Power Management was on. changed to off. Now, for past few hours wifi is not disconnecting. Thanks. – dhiya Jul 10 '15 at 09:16
  • After setting the Power management Off, every thing was working fine for last few days. But now Wifi is again frequently disconnecting. – dhiya Aug 05 '15 at 10:40
  • Did you checked the iwconfig if it's still off? – tikend Aug 05 '15 at 11:05
  • When wifi is disconnected, on ~$ iwconfig I got the following

    eth0 no wireless extensions.

    wlan0 IEEE 802.11bgn ESSID:off/any Mode:Managed Access Point: Not-Associated Tx-Power=20 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off

    lo no wireless extensions.

     – dhiya Aug 05 '15 at 11:11