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Lebkoungcity
Apprentice
Joined: 16 Nov 2008
Posts: 212
Location: near Lebkoungcity (='Gingerbreadcity' =Nuremberg)
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 Posted: Sun Sep 21, 2014 3:16 pm Post subject: unstable Wireless-LAN: "connected" but nothing get |
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Hi,
since I replaced the wireless-LAN-Adapter-card in my ThinkPad R40 the connection is sometimes "lost": When I boot the machine the wireless-LAN connection is established and usable at full speed. But sometimes the connection is still shown as "connected" by wicd but no data gets through it. I think it is related to times when there is heavy traffic between the ThinkPad and the desktop-PC which I use as NFS-Server for portage and as distcc-helper for the laptop.
When I used the old Intel PRO/Wireless 2100 Network Connection 802.11b wireless network adapter card the speed was kind of low (because it is a 802.11b card) but it was stable.
The new card is this:
| Code: | lspci -vv
[...]
02:02.0 Network controller: Broadcom Corporation BCM4306 802.11b/g Wireless LAN Controller (rev 03)
Subsystem: Broadcom Corporation Device 0453
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
Status: Cap- 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 64
Interrupt: pin A routed to IRQ 11
Region 0: Memory at c0204000 (32-bit, non-prefetchable) [size=8K]
Kernel driver in use: b43-pci-bridge
Kernel modules: ssb
[...]
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My kernel is configured with these settings:
| Code: |
[...]
<M> Broadcom 43xx wireless support (mac80211 stack)
[ ] Broadcom 43xx PCMCIA device support
[ ] Support for 802.11n (N-PHY) devices
[ ] Support for low-power (LP-PHY) devices
[ ] Broadcom 43xx debugging
< > Broadcom 43xx-legacy wireless support (mac80211 stack)
< > Broadcom IEEE802.11n PCIe SoftMAC WLAN driver
< > Broadcom IEEE802.11n embedded FullMAC WLAN driver
< > IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)
<M> Intel PRO/Wireless 2100 Network Connection
[*] Enable promiscuous mode
[ ] Enable full debugging output in IPW2100 module.
[...]
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Then I emerged
| Code: |
sys-firmware/b43-firmware-5.100.138:b43
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which pulled in
| Code: |
net-wireless/b43-fwcutter-018
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Afterwards I could use the card but with the described issues...
What can I do to track down the problem? Where should I start?
Greetings from Franconia,
Andy
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"The most dangerous world view is the world view of the ones who haven't viewed the world."
Alexander von Humboldt (1769-1859) |
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Lebkoungcity
Apprentice
Joined: 16 Nov 2008
Posts: 212
Location: near Lebkoungcity (='Gingerbreadcity' =Nuremberg)
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| Posted: Tue Sep 23, 2014 9:31 am Post subject: |
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After some more reading I've taken out powersave. Now the section 'wireless' under 'Networking support' looks like this:
| Code: |
--- Wireless
<*> cfg80211 - wireless configuration API
[ ] nl80211 testmode command
[ ] enable developer warnings
[ ] cfg80211 regulatory debugging
[ ] enable powersave by default
[ ] cfg80211 DebugFS entries
[*] cfg80211 wireless extensions compatibility
[ ] lib80211 debugging messages
<*> Generic IEEE 802.11 Networking Stack (mac80211)
Default rate control algorithm (Minstrel) --->
[ ] Enable mac80211 mesh networking (pre-802.11s) support
[*] Enable LED triggers
[ ] Export mac80211 internals in DebugFS
[ ] Trace all mac80211 debug messages
[ ] Select mac80211 debugging features ----
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But it's still the same... It's really annoying - right now I emerge libreoffice and it should have been finished for hours but the connection with the distcc-helper-machine was down without a notification...
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"The most dangerous world view is the world view of the ones who haven't viewed the world."
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Lebkoungcity
Apprentice
Joined: 16 Nov 2008
Posts: 212
Location: near Lebkoungcity (='Gingerbreadcity' =Nuremberg)
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| Posted: Sat Oct 04, 2014 9:45 am Post subject: |
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OK, I played around with the settings in the kernel and the settings my router provides - but nothing seemed to help.
By accident I discovered that the connection is kept up when I let the ThinkPad ping the other machine all the time.
Might this help to narrow the issue?
Greetings,
Andy
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"The most dangerous world view is the world view of the ones who haven't viewed the world."
Alexander von Humboldt (1769-1859) |
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v_andal
Guru
Joined: 26 Aug 2008
Posts: 541
Location: Germany
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| Posted: Mon Oct 06, 2014 7:29 am Post subject: |
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| Have you tried downgrading firmware for broadcom card? In my case it solved the issue with stability. |
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666threesixes666
Veteran
Joined: 31 May 2011
Posts: 1248
Location: 42.68n 85.41w
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| Posted: Mon Oct 06, 2014 7:43 am Post subject: |
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| ditto roll back your drivers.... not only does it mess with the bandwidth of the broadcom machine, it also kills everyone elses wifi connections. |
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Lebkoungcity
Apprentice
Joined: 16 Nov 2008
Posts: 212
Location: near Lebkoungcity (='Gingerbreadcity' =Nuremberg)
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| Posted: Mon Oct 06, 2014 11:02 pm Post subject: |
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Thank you for your suggestion! Unfortunately, the installed one is the lowest version of sys-firmware/b43-firmware in the portage-tree, so I'd have to get it from somewhere else. Which version would you suggest to try?
edit:
I've already tried it with the other version in portage (6.30.163.46) - the connection was as unstable as with version 5.100.138...
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Networking & Security
