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  1. Funtoo Linux
  2. FL-2372

Wifi repeatedly disconnects/reconnects with net-misc/networkmanager-1.0.0 using net-misc/dhcpcd-6.8.2 for ip resolution

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Environment:

      funtoo-current, x86-64bit
      sys-kernel/ck-sources-4.0.0
      sys-kernel/linux-firmware-20150320

      Intel Wireless-AC 7260 DT (via 'iwlwifi' kernel module)

      Description

      A recent update to net-misc/networkmanager-1.0.0 has resulted in my wireless (802.11g and 802.11n) connection(s) repeatedly disconnecting/reconnecting. Network connectivity is effectively unusable.

      The following output from the kernel ring buffer is repeated:

      dmesg output
      [  528.953881] wlan0: authenticate with 64:66:b3:96:3c:f7
      [  528.955932] wlan0: send auth to 64:66:b3:96:3c:f7 (try 1/3)
      [  528.956374] wlan0: authenticated
      [  528.956491] wlan0: associate with 64:66:b3:96:3c:f7 (try 1/3)
      [  528.957190] wlan0: RX AssocResp from 64:66:b3:96:3c:f7 (capab=0x411 status=0 aid=26)
      [  528.958212] wlan0: associated
      [  528.958249] cfg80211: Calling CRDA for country: AU
      [  528.959943] cfg80211: Regulatory domain changed to country: AU
      [  528.959946] cfg80211:  DFS Master region: unset
      [  528.959947] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
      [  528.959950] cfg80211:   (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
      [  528.959951] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 1700 mBm), (N/A)
      [  528.959953] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2400 mBm), (0 s)
      [  528.959955] cfg80211:   (5490000 KHz - 5710000 KHz @ 160000 KHz), (N/A, 2400 mBm), (0 s)
      [  528.959957] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
      [  535.561525] wlan0: deauthenticating from 64:66:b3:96:3c:f7 by local choice (Reason: 3=DEAUTH_LEAVING)
      [  535.565255] cfg80211: Calling CRDA to update world regulatory domain
      [  535.567842] cfg80211: World regulatory domain updated:
      [  535.567847] cfg80211:  DFS Master region: unset
      [  535.567848] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
      [  535.567852] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
      [  535.567854] cfg80211:   (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
      [  535.567856] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
      [  535.567859] cfg80211:   (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
      [  535.567862] cfg80211:   (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
      [  535.567864] cfg80211:   (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
      [  535.567866] cfg80211:   (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
      [  535.567869] cfg80211:   (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
      

      A similar bug has been reported to the NetworkManager project https://bugzilla.gnome.org/show_bug.cgi?id=743472. The suggestion is that utilising net-misc/dhcpcd for ip resolution is problematic for NetworkManager version 1.0.0. Similarly, the NetworkManager page on the Gentoo Wiki (link) currently recommends switching from net-misc/dhcpcd to net-misc/dhcp.

      Consequently I experimented with these recommendations. Firstly I added the following to /etc/portage/package.use

      /etc/portage/package.use
      >=net-misc/networkmanager-1.0.0 dhclient -dhcpcd
      

      as the default USE flags for NetworkManager are dhcpcd -dhclient.

      I then performed an emerge update which pulled in net-misc/dhcp-4.3.2 and re-emerged net-misc/networkmanager-1.0.0 with the changed USE flags. Next was a change to the NetworkManager configuration file so that net-misc/dhcp ('dhclient') would be used instead of net-misc/dhcpcd ('dhcpcd')

      /etc/NetworkManager/NetworkManager.conf
      [main]
      dhcp=dhclient
      

      As per the Gentoo Wiki, the hostname was added to the configuration of the net-misc/dhcp client with the following line

      /etc/dhcp/dhclient.conf
      send host-name "myhostname";
      

      Lastly I restarted NetworkManager and allowed it to connect automatically to my wireless network.

      Following the above steps my wireless (wifi) connection returned to normal. The disconnection/reconnection problem was resolved.

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            • Assignee:
              drobbins drobbins
              Reporter:
              tassietux tassietux
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              2 Vote for this issue
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              Dates

              • Created:
                Updated:
                Resolved: