Ubuntu
network-manager package

NM keeps disconnecting from Wi-Fi network -- Broadcom BCM4328, wl

Bug #441872 reported by j^
38
This bug affects 7 people
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)
Expired
Undecided
Unassigned

Bug Description

Binary package hint: network-manager

since the last update to latest karmic beta, network-manager keeps disconnecting from my wireless network.
after reloading the driver(modprobe -r wl;modrobe wl) i can connect again for a minute or so.

disabling network-manager and connecting with iwconfig / dhclient, the connection is stable.
with network-manager it only stays connect for a short time, after that disconnects and tries
to connect without success.

the wireless chip is
02:00.0 Network controller: Broadcom Corporation BCM4328 802.11a/b/g/n (rev 03)

using the wl kernel module

network-manager is
Version: 0.8~a~git.20090923t064445.b20cef2-0ubuntu2

LAST VERSION TESTED:
 0.8~a~git.20091005t192303.1d28ad1-0ubuntu2

kernel is
Version: 2.6.31-11.38

See original description
Revision history for this message
Micah Gersten (micahg) wrote :

I also have this trouble with Karmic Beta. This is my wireless card:
 AR928X Wireless Network Adapter (PCI-Express)

Changed in network-manager (Ubuntu):
status: New → Confirmed
Micah Gersten (micahg)
description: updated
Revision history for this message
Micah Gersten (micahg) wrote :

I found that ath9k has a kernel issue with this: Bug #414560, I don't know about the broadcom chipset

Revision history for this message
GarrettFoster (garrett-d-foster) wrote :

I am experiencing something very similar. I upgraded to Karmic from Jaunty, which had no problems. Now when I first boot up everything connects just fine and I can use the wireless internet for a short while. Then for some unknown reason a disconnect happens. Network Manager tries to reconnect but is unsuccessful. I am able to get it to reconnect by disabling the network (un-checking the box) and re-enabling it (re-checking the box) a short time later.

Here is my forum post that has more info: http://ubuntuforums.org/showthread.php?t=1304554

As of now I am using wicd as it is much more stable. I will gladly switch back to network manager if more info is needed.

Revision history for this message
Seva Gluschenko (gvs-ya) wrote :

Seems like some WLAN cards can't survive continuous NetworkManager's CTRL-EVENT-SCAN attempts of keeping good roaming. Seems like there can't be any progress 'til NM authors finally conclude that roaming MUST be refined seriously (e.g. disabling rescans until signal strength falls below 60% or so).

Thomas Hood (jdthood)
summary: - network-manager disconnects from wirless network
+ NM keeps disconnecting from Wi-Fi network -- Broadcom wl
summary: - NM keeps disconnecting from Wi-Fi network -- Broadcom wl
+ NM keeps disconnecting from Wi-Fi network -- Broadcom BCM4328, wl
Revision history for this message
Thomas Hood (jdthood) wrote :

@j: Is there any improvement in Ubuntu 12.04?

Changed in network-manager (Ubuntu):
status: Confirmed → Incomplete
Revision history for this message
Launchpad Janitor (janitor) wrote :

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]

Changed in network-manager (Ubuntu):
status: Incomplete → Expired
To post a comment you must log in.
This report contains Public information  
Everyone can see this information.
Subscribing...

Other bug subscribers

Remote bug watches

Bug watches keep track of this bug in other bug trackers.