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#1 2012-06-22 20:41:06

2k
Member
From: UK
Registered: 2006-02-17
Posts: 76

wired network problems

Hi there,

I'm having problems with my wired network and desktop machine running arch.

my problem is the internet connection when browsing keeps appearing to drop when I'm running other internet based things. For instance if I'm downloading a torrent in ktorrent even if the torrent is downloading slowly then browsing becomes impossible. Or if pacman is running browsing again becomes impossible. Sometimes it appears to drop when nothing else is running.

The internet connection is fine because my laptop (also running arch) and on a wired connection works perfectly every time. I have tried swapping from the built-in network card to another one with no success, I have tried changing the cables with no joy.

The internet worked fine on this machine until I reinstalled arch on a different hard disk, i'm completely at a loss as to what the problem could be.

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#2 2012-06-23 08:11:25

Gcool
Member
Registered: 2011-08-16
Posts: 1,456

Re: wired network problems

The following info would be helpfull (not really much to go on atm):

# lspci -k
# ip link
# ip addr
# ip route

Burninate!

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#3 2012-06-23 10:20:30

2k
Member
From: UK
Registered: 2006-02-17
Posts: 76

Re: wired network problems

Hi Gcool, here is the output of the 4 commands that you posted

lspci -k

00:00.0 Class 0600: Device 8086:2770 (rev 02)
        Subsystem: Device 103c:2a50
00:01.0 Class 0604: Device 8086:2771 (rev 02)
        Kernel driver in use: pcieport
00:1b.0 Class 0403: Device 8086:27d8 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: snd_hda_intel
00:1d.0 Class 0c03: Device 8086:27c8 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.1 Class 0c03: Device 8086:27c9 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.2 Class 0c03: Device 8086:27ca (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.3 Class 0c03: Device 8086:27cb (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.7 Class 0c03: Device 8086:27cc (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: ehci_hcd
00:1e.0 Class 0604: Device 8086:244e (rev e1)
00:1f.0 Class 0601: Device 8086:27b0 (rev 01)
        Subsystem: Device 103c:2a50
00:1f.1 Class 0101: Device 8086:27df (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: ata_piix
00:1f.2 Class 0104: Device 8086:27c3 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: ahci
00:1f.3 Class 0c05: Device 8086:27da (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: i801_smbus
01:00.0 Class 0300: Device 1002:7181
        Subsystem: Device 1462:0400
        Kernel driver in use: radeon
01:00.1 Class 0380: Device 1002:71a1
        Subsystem: Device 1462:0401
02:01.0 Class 0c00: Device 11c1:5811 (rev 70)
        Subsystem: Device 103c:2a50
        Kernel driver in use: firewire_ohci
02:03.0 Class 0200: Device 10ec:8139 (rev 10)
        Subsystem: Device 10ec:8139
        Kernel driver in use: 8139too
02:04.0 Class 0280: Device 1814:0201 (rev 01)
        Subsystem: Device 1814:2560
        Kernel driver in use: rt2500pci
02:08.0 Class 0200: Device 8086:27dc (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: e100

ip link

00:00.0 Class 0600: Device 8086:2770 (rev 02)
        Subsystem: Device 103c:2a50
00:01.0 Class 0604: Device 8086:2771 (rev 02)
        Kernel driver in use: pcieport
00:1b.0 Class 0403: Device 8086:27d8 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: snd_hda_intel
00:1d.0 Class 0c03: Device 8086:27c8 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.1 Class 0c03: Device 8086:27c9 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.2 Class 0c03: Device 8086:27ca (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.3 Class 0c03: Device 8086:27cb (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: uhci_hcd
00:1d.7 Class 0c03: Device 8086:27cc (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: ehci_hcd
00:1e.0 Class 0604: Device 8086:244e (rev e1)
00:1f.0 Class 0601: Device 8086:27b0 (rev 01)
        Subsystem: Device 103c:2a50
00:1f.1 Class 0101: Device 8086:27df (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: ata_piix
00:1f.2 Class 0104: Device 8086:27c3 (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: ahci
00:1f.3 Class 0c05: Device 8086:27da (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: i801_smbus
01:00.0 Class 0300: Device 1002:7181
        Subsystem: Device 1462:0400
        Kernel driver in use: radeon
01:00.1 Class 0380: Device 1002:71a1
        Subsystem: Device 1462:0401
02:01.0 Class 0c00: Device 11c1:5811 (rev 70)
        Subsystem: Device 103c:2a50
        Kernel driver in use: firewire_ohci
02:03.0 Class 0200: Device 10ec:8139 (rev 10)
        Subsystem: Device 10ec:8139
        Kernel driver in use: 8139too
02:04.0 Class 0280: Device 1814:0201 (rev 01)
        Subsystem: Device 1814:2560
        Kernel driver in use: rt2500pci
02:08.0 Class 0200: Device 8086:27dc (rev 01)
        Subsystem: Device 103c:2a50
        Kernel driver in use: e100

ip addr

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue state UNKNOWN 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
    link/ether 00:1a:92:de:71:43 brd ff:ff:ff:ff:ff:ff
    inet 192.168.0.2/24 brd 192.168.0.255 scope global eth0
    inet6 fe80::21a:92ff:fede:7143/64 scope link 
       valid_lft forever preferred_lft forever
3: eth1: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 00:e0:4c:39:00:07 brd ff:ff:ff:ff:ff:ff
4: wlan0: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether 00:90:4b:d6:30:8a brd ff:ff:ff:ff:ff:ff

ip route

default via 192.168.0.1 dev eth0 
192.168.0.0/24 dev eth0  proto kernel  scope link  src 192.168.0.2

As you can see currently I have the onboard LAN card enabled and connected to the network, the Realtek card isn't connected to the network and nor is the wireless card. I only re-anabled the onboard card to test to make sure that it wasn't a problem with the Realtek card, and it doesn't seem to be.

I have copied all my data across the network onto my server without a problem, therefore it seems to be just a problem accessing the internet. Because all my data is now sat on my server it means I can do a completely fresh install onto this computer but i know that isn't really the Linux way wink

This machine does dual boot with windows so I might boot into window to see if the problem happens when using that.

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#4 2012-06-23 11:15:14

Gcool
Member
Registered: 2011-08-16
Posts: 1,456

Re: wired network problems

I see you have ipv6 enabled. Are you using an ipv6 link? If not, try disabling ipv6 and see if that makes a difference.

PS: your hardwareinfo in lspci seems to be missing (it should be showing the actual manufacturer name etc). Most likely your hwids package got destroyed somehow. Reinstalling it should solve that issue.

Burninate!

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#5 2012-06-23 11:52:16

2k
Member
From: UK
Registered: 2006-02-17
Posts: 76

Re: wired network problems

Hi Gcool

I have done both of those things and so far so good, I have also disabled the onboard LAN so that should prevent any confusion. the output from lspci - k is looking much better.

Now I guess i'll have to wait and see if the problem occurs again.

Thank you for your help so far, if this fixes the problem i'll mark the topic solved. fingers crossed smile

Mike

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#6 2012-06-23 18:16:58

2k
Member
From: UK
Registered: 2006-02-17
Posts: 76

Re: wired network problems

Hi there,

Sadly the internet connection is still completely unreliable sad

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