Ubuntu – While using internet on ubuntu, all other computers get bad internet connection

12.04broadcomnetworkingrouterwireless

I am currently using Ubuntu 10.04 Precise (in dual boot with Windows 7).

Whenever I log onto Ubuntu Internet, all other computers Internet speeds plummet. Usually we have 20 Mbps download and 2 upload. However, when I log onto Ubuntu I can still get this on this computer but all other computers go to about .5 Mbps download and .6 Mbps upload.

When I log into Windows on the same machine the Internet works fine on all other computers.

My ISP is currently Time Warner. The router is SBG6580 Motorla

here is my wireless card:

02:00.0 Network controller: Broadcom Corporation BCM4313 802.11b/g/n Wireless LAN Controller (rev 01)
    Subsystem: Dell Inspiron M5010 / XPS 8300
    Flags: bus master, fast devsel, latency 0, IRQ 16
    Memory at fb200000 (64-bit, non-prefetchable) [size=16K]
    Capabilities: [40] Power Management version 3
    Capabilities: [58] Vendor Specific Information: Len=78 <?>
    Capabilities: [48] 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 00-00-3d-ff-ff-70-e4-d5
    Capabilities: [16c] Power Budgeting <?>
    Kernel driver in use: wl
    Kernel modules: wl, bcma, brcmsmac

output of ifconfig for wireless:

eth1      Link encap:Ethernet  HWaddr e4:d5:3d:70:81:b3  
          inet addr:192.168.0.5  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::e6d5:3dff:fe70:81b3/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:36476 errors:2 dropped:0 overruns:0 frame:9891
          TX packets:29153 errors:8 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:43805291 (43.8 MB)  TX bytes:6741638 (6.7 MB)
          Interrupt:16

Any advice or debugging assistance would be greatly appreciated!!!
Thanks!

Best Answer

From @Matv1 comment:

I'm a bit confused. I was going on the assumption that Ubuntu wireless was working well, just that it was impacting throughput on your other connections. Now I understand that the connection on your ubuntu is dropped sometimes as well.
What I notice in your dmesgis that the wifi client doesn't know which regulatory domain it is in. I know that when this is not set, it can create problems for the connection as well as on the router side.

To solve this, you should set your domain (assuming your in the US) in the terminal like this:

sudo apt-get install iw

sudo iw reg set US

Related Question