I'm still experiencing this issue and it's very annoying. I was able to
compile a wireless driver but after about three weeks the problem returned.


On Thu, Jun 12, 2014 at 7:05 PM, cascagrossa <email address hidden>
wrote:

> Yesterday I uninstalled the Broadcom (bcmwl-kernel-source package) driver
> and since then using "open source" (brcmsmac) the wireless network no
> longer drop. So it seems that this confirms, at least in the case of
> Broadcom, that the failure is in the proprietary driver.
> However, after boot and when returning from hibernation "iw reg get" still
> shows "country UZ"... But that is not making any  difference because the
> wireless network showed no further failures.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1309300
>
> Title:
>   Upgrade to Trusty ruined wireless connectivity
>
> Status in “network-manager” package in Ubuntu:
>   Confirmed
>
> Bug description:
>   After upgrading to Trusty I am unable to connect to my wireless
>   network.
>
>   ProblemType: Bug
>   DistroRelease: Ubuntu 14.04
>   Package: network-manager 0.9.8.8-0ubuntu7
>   ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9
>   Uname: Linux 3.13.0-24-generic x86_64
>   ApportVersion: 2.14.1-0ubuntu3
>   Architecture: amd64
>   CurrentDesktop: Unity
>   Date: Thu Apr 17 22:14:12 2014
>   EcryptfsInUse: Yes
>   IfupdownConfig:
>    # interfaces(5) file used by ifup(8) and ifdown(8)
>    auto lo
>    iface lo inet loopback
>   InstallationDate: Installed on 2014-04-14 (3 days ago)
>   InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Release amd64
> (20131016.1)
>   IpRoute:
>    default via 192.168.1.1 dev eth0  proto static
>    192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.5
>  metric 1
>   NetworkManager.state:
>    [main]
>    NetworkingEnabled=true
>    WirelessEnabled=true
>    WWANEnabled=true
>    WimaxEnabled=true
>   ProcEnviron:
>    LANGUAGE=en_US
>    PATH=(custom, no user)
>    XDG_RUNTIME_DIR=<set>
>    LANG=en_US.UTF-8
>    SHELL=/bin/bash
>   SourcePackage: network-manager
>   UpgradeStatus: Upgraded to trusty on 2014-04-18 (0 days ago)
>   nmcli-con:
>    NAME                      UUID                                   TYPE
>            TIMESTAMP    TIMESTAMP-REAL                     AUTOCONNECT
> READONLY   DBUS-PATH
>    WP Wireless               eb9a6401-02e6-4f9e-975b-b8b06cfc748b
> 802-11-wireless   1397736115   Thu 17 Apr 2014 08:01:55 AM EDT    yes
>     no         /org/freedesktop/NetworkManager/Settings/2
>    Nexus 4 Network           855164dc-972c-4563-88d8-79650121a0b3
> bluetooth         0            never                              no
>      no         /org/freedesktop/NetworkManager/Settings/1
>    Auto Ethernet             dd82a879-dde9-43fe-8c91-e5779db5e509
> 802-3-ethernet    1397787239   Thu 17 Apr 2014 10:13:59 PM EDT    yes
>     no         /org/freedesktop/NetworkManager/Settings/0
>    RZ5MC                     119e56b0-d33f-4850-a29d-a4cd8d8ebe7f
> 802-11-wireless   0            never                              yes
>     no         /org/freedesktop/NetworkManager/Settings/3
>   nmcli-dev:
>    DEVICE     TYPE              STATE         DBUS-PATH
>    30:76:6F:3E:C8:67 bluetooth         disconnected
>  /org/freedesktop/NetworkManager/Devices/2
>    wlan0      802-11-wireless   disconnected
>  /org/freedesktop/NetworkManager/Devices/1
>    eth0       802-3-ethernet    connected
> /org/freedesktop/NetworkManager/Devices/0
>   nmcli-nm:
>    RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE
>   WIFI       WWAN-HARDWARE   WWAN
>    running         0.9.8.8    connected       enabled       enabled
>   enabled    enabled         disabled
>
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>
> https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1309300/+subscriptions
>