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#1 2013-03-30 17:07:35

beaux_monde
Member
Registered: 2012-12-06
Posts: 36

Wireless disconnects after some time of using

Hi!
There is Compaq 610 with Broadcom BCM4312 on board:

10:00.0 Network controller: Broadcom Corporation BCM4312 802.11b/g LP-PHY (rev 01)
        Subsystem: Hewlett-Packard Company Device 1508
        Flags: bus master, fast devsel, latency 0, IRQ 17
        Memory at e8000000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [40] Power Management version 3
        Capabilities: [58] Vendor Specific Information: Len=78 <?>
        Capabilities: [e8] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [d0] Express Endpoint, MSI 00
        Capabilities: [100] Advanced Error Reporting
        Capabilities: [13c] Virtual Channel
        Capabilities: [160] Device Serial Number 00-00-00-ff-ff-00-ff-ff
        Capabilities: [16c] Power Budgeting <?>
        Kernel driver in use: b43-pci-bridge

Arch has been installed some time ago and all was fine with WiFi, but (it looks like after some of updates) now after some time of it's using it disconnects fith this log:

...
[ 7936.790074] serge-laptop NetworkManager[319]: <info> Writing DNS information to /usr/sbin/resolvconf
[ 7936.998982] serge-laptop NetworkManager[319]: <info> Activation (wlan0) successful, device activated.
[ 7937.011548] serge-laptop dbus-daemon[320]: dbus[320]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
[ 7937.016481] serge-laptop dbus[320]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
[ 7937.044437] serge-laptop dbus-daemon[320]: dbus[320]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
[ 7937.049825] serge-laptop dbus[320]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'

At this point connection activated and further:

[ 8319.508344] serge-laptop NetworkManager[319]: <warn> Connection disconnected (reason -4)
[ 8319.505891] serge-laptop kernel: ieee80211 phy0: wlan0: No probe response from AP 84:74:2a:45:80:9d after 500ms, disconnecting.
[ 8319.509437] serge-laptop kernel: cfg80211: Calling CRDA for country: BY
[ 8319.516971] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: completed -> disconnected
[ 8319.613618] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: disconnected -> scanning
[ 8320.823527] serge-laptop kernel: wlan0: authenticate with 84:74:2a:45:80:9d
[ 8320.837888] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: scanning -> authenticating
[ 8320.836193] serge-laptop kernel: wlan0: send auth to 84:74:2a:45:80:9d (try 1/3)
[ 8321.039233] serge-laptop kernel: wlan0: send auth to 84:74:2a:45:80:9d (try 2/3)
[ 8321.242521] serge-laptop kernel: wlan0: send auth to 84:74:2a:45:80:9d (try 3/3)
[ 8321.445849] serge-laptop kernel: wlan0: authentication with 84:74:2a:45:80:9d timed out
[ 8321.452411] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: authenticating -> disconnected
[ 8321.953004] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: disconnected -> scanning
[ 8329.386971] serge-laptop kernel: wlan0: authenticate with 84:74:2a:45:80:9d
[ 8329.402953] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: scanning -> authenticating
[ 8329.399515] serge-laptop kernel: wlan0: send auth to 84:74:2a:45:80:9d (try 1/3)
[ 8329.602521] serge-laptop kernel: wlan0: send auth to 84:74:2a:45:80:9d (try 2/3)
[ 8329.805852] serge-laptop kernel: wlan0: send auth to 84:74:2a:45:80:9d (try 3/3)
[ 8330.001872] serge-laptop NetworkManager[319]: <info> (wlan0): roamed from BSSID 84:74:2A:45:80:9D (42-17) to (none) ((none))
[ 8330.009185] serge-laptop kernel: wlan0: authentication with 84:74:2a:45:80:9d timed out
[ 8330.015745] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: authenticating -> disconnected
[ 8331.016325] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: disconnected -> scanning
[ 8335.003003] serge-laptop NetworkManager[319]: <warn> (wlan0): link timed out.
[ 8335.005401] serge-laptop NetworkManager[319]: <info> (wlan0): device state change: activated -> failed (reason 'SSID not found') [100 120 53]
[ 8335.043567] serge-laptop NetworkManager[319]: <warn> Activation (wlan0) failed for connection '42-17'
[ 8335.045533] serge-laptop dbus-daemon[320]: dbus[320]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
[ 8335.046035] serge-laptop dbus[320]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
[ 8335.057015] serge-laptop NetworkManager[319]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
[ 8335.057475] serge-laptop NetworkManager[319]: <info> (wlan0): deactivating device (reason 'none') [0]
[ 8335.084241] serge-laptop dbus-daemon[320]: dbus[320]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
[ 8335.088557] serge-laptop dbus[320]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
[ 8335.260152] serge-laptop NetworkManager[319]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 6485
[ 8335.260682] serge-laptop NetworkManager[319]: <info> Removing DNS information from /usr/sbin/resolvconf
[ 8335.415215] serge-laptop NetworkManager[319]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
[ 8336.635333] serge-laptop NetworkManager[319]: <info> (wlan0): supplicant interface state: scanning -> inactive

Looks like it disconnects because there is the idling (see Reason code of disconnection), but after disconnection laptop does not see my SSID, only others. After I switch off and on again the wireless radio using hardware switch laptop sees my SSID again.
I can try to check whether it will disconnect if I run ping, but I think all of this is result of some of updates.
Any ideas?

Last edited by beaux_monde (2013-03-31 08:05:59)

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#2 2013-04-01 04:20:18

t1nk3r3r
Member
From: The Pacific Northwest
Registered: 2011-03-22
Posts: 79

Re: Wireless disconnects after some time of using

At a glance, I see loss of signal.  This could be for a number of reasons:
* driver bug
* loose antenna connection
* weak transmitting signal from AP, card or both. Distance?
* b/g interference: wireless phones, microwaves, bluetooth, other APs

First, check signal strength via

$ iwconfig

.
Next, use wireless_tools (you should have these installed). As root:

# ip link set wlan0 up
# iwlist wlan0 scan | grep Channel

Assuming wlan0 is your wireless interface.
Take note of the number of other APs and what channels they are using.  I recommend being at least two channels away from anyone else.


--------------------------The only wasted day is one in which you learn nothing.--------------------------

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#3 2013-04-04 20:00:32

beaux_monde
Member
Registered: 2012-12-06
Posts: 36

Re: Wireless disconnects after some time of using

See please this thread.

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#4 2013-04-05 06:02:21

10PinkPanther
Member
From: Croatia
Registered: 2012-11-10
Posts: 333

Re: Wireless disconnects after some time of using

Hi.
I had disconnections like that on my first install.I have same bcm 4312.In my case it was caused becouse I had NetworkManager and netcfg enabled.Disabling netcfg solved the problem.Is netcfg enabled on your system?

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#5 2013-04-05 11:11:58

beaux_monde
Member
Registered: 2012-12-06
Posts: 36

Re: Wireless disconnects after some time of using

10PinkPanther wrote:

Hi.
I had disconnections like that on my first install.I have same bcm 4312.In my case it was caused becouse I had NetworkManager and netcfg enabled.Disabling netcfg solved the problem.Is netcfg enabled on your system?

No.

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