From mboxrd@z Thu Jan  1 00:00:00 1970
From: bidouleur at free.fr <bidouleur@free.fr>
Date: Wed, 24 Feb 2016 18:04:54 +0100 (CET)
Subject: [ath9k-devel] wifi down on laptop after sleep mode
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To: ath9k-devel@lists.ath9k.org

Hi

I try to find a solution to a problem I have on a laptop, wifi does not reconnect after sleep mode

I put some infos

Mageia 5
noyau : 4.1.15-desktop-2.mga5
arch: 64-bit
Bureau : KDE

Network controller [0280]: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) [168c:002b] (rev 01)


# iwconfig

wlp3s0    IEEE 802.11bgn  ESSID:"Livebox-4a79"  
          Mode:Managed  Frequency:2.437 GHz  Access Point: 00:19:70:7D:58:E2   
          Bit Rate=65 Mb/s   Tx-Power=15 dBm   
          Retry short limit:7   RTS thr:off   Fragment thr:off
          Encryption key:off
          Power Management:off
          Link Quality=67/70  Signal level=-43 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:18   Missed beacon:0

After puting laptop to sleep


# iwevent
Waiting for Wireless Events from interfaces...
17:06:54.470670   wlp3s0   New Access Point/Cell address:Not-Associated
17:07:02.259794   wlp3s0   Scan request completed
17:07:33.917792   wlp3s0   Scan request completed
17:07:39.503809   wlp3s0   Scan request completed
17:07:55.757790   wlp3s0   Scan request completed
17:08:01.337756   wlp3s0   Scan request completed
17:08:31.653794   wlp3s0   Scan request completed
17:08:39.627249   wlp3s0   Set Mode:Managed
17:08:39.648581   wlp3s0   Set Encryption key:{8800}off
17:08:39.663715   wlp3s0   Set ESSID:"Livebox-4a79"
17:08:39.670877   wlp3s0   Association Response IEs:010882848B0C1296182432043048606CDD180050F2020101820003A4000027A4000042435E0062322F00DD0900037F01010000FF7F2D1A0C101BFF000000000
17:08:39.670934   wlp3s0   New Access Point/Cell address:00:19:70:7D:58:E2
17:08:42.028789   wlp3s0   Scan request completed



# iw dev wlp3s0 link
Connected to 00:19:70:7d:58:e2 (on wlp3s0)
        SSID: Livebox-4a79
        freq: 2437
        RX: 3292160 bytes (17536 packets)
        TX: 305502 bytes (2504 packets)
        signal: -45 dBm
        tx bitrate: 65.0 MBit/s MCS 7

        bss flags:      short-preamble short-slot-time
        dtim period:    3
        beacon int:     100
# iw dev wlp3s0 get power_save
Power save: off

# iw dev wlp3s0 set power_save on
command failed: Operation not supported (-95)

I guess the last bit is the most important

If more infos needed, please instruct me, thanks

Bidou