Hi,
I'm running Ubuntu 12.04 on an HP 6730b laptop. Sometimes my wired internet access just drops. I can get it back by simply rebooting, but I haven't found any other way (disable/enable network or restarting network manager doesn't help).
This has happened two times now within one week. Not too much, but since I have to reboot it's quiet annoying.
Some more info:
- I can ping 127.0.0.1 but not external websites
- Both LEDs at the ethernet connector are active (green is lit, orange is blinking irregularly)
- I tried disabling ipv6 (by doing this: http://www.noobslab.com/2012/05/disa...ternet-is.html), didn't help
- When the wired connection has dropped, if I enable wireless, the wireless connection works fine
I have attached the output of a number of terminal commands under this message that might give you guys some info. These commands were run when the connection had been dropped (and before I rebooted).
Thanks, Carl
Code:
$ uname -a
Linux my-laptop 3.2.0-29-generic-pae #46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686 i686 i386 GNU/Linux
$
$
$ lspci -nnk | grep -iA2 net
02:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 5100 AGN [Shiloh] Network Connection [8086:4237]
Subsystem: Intel Corporation WiFi Link 5100 AGN [8086:1211]
Kernel driver in use: iwlwifi
--
85:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express [14e4:1693] (rev 02)
Subsystem: Hewlett-Packard Company Device [103c:30dd]
Kernel driver in use: tg3
$
$
$ lsmod
Module Size Used by
btusb 17912 2
rfcomm 38139 16
bnep 17830 2
bluetooth 158438 23 btusb,rfcomm,bnep
dm_crypt 22528 0
binfmt_misc 17292 1
snd_hda_codec_analog 75395 1
snd_hda_intel 32765 2
snd_hda_codec 109562 2 snd_hda_codec_analog,snd_hda_intel
snd_hwdep 13276 1 snd_hda_codec
snd_pcm 80845 2 snd_hda_intel,snd_hda_codec
snd_seq_midi 13132 0
snd_rawmidi 25424 1 snd_seq_midi
snd_seq_midi_event 14475 1 snd_seq_midi
snd_seq 51567 2 snd_seq_midi,snd_seq_midi_event
snd_timer 28931 2 snd_pcm,snd_seq
arc4 12473 2
snd_seq_device 14172 3 snd_seq_midi,snd_rawmidi,snd_seq
uvcvideo 67203 0
videodev 86588 1 uvcvideo
joydev 17393 0
tpm_infineon 17296 0
snd 62064 13 snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
iwlwifi 291907 0
soundcore 14635 1 snd
snd_page_alloc 14108 2 snd_hda_intel,snd_pcm
hp_accel 25728 0
psmouse 72919 0
lis3lv02d 19268 1 hp_accel
hp_wmi 13652 0
serio_raw 13027 0
sparse_keymap 13658 1 hp_wmi
input_polldev 13648 1 lis3lv02d
mac80211 436455 1 iwlwifi
cfg80211 178679 2 iwlwifi,mac80211
mac_hid 13077 0
tpm_tis 18308 0
ppdev 12849 0
parport_pc 32114 1
lp 17455 0
parport 40930 3 ppdev,parport_pc,lp
firewire_ohci 40172 0
firewire_core 56906 1 firewire_ohci
crc_itu_t 12627 1 firewire_core
tg3 141369 0
wmi 18744 1 hp_wmi
i915 414739 3
drm_kms_helper 45466 1 i915
drm 197692 4 i915,drm_kms_helper
i2c_algo_bit 13199 1 i915
video 19068 1 i915
$
$
$ cat /etc/resolv.conf
# Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
# DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
nameserver 127.0.0.1
$
$
$ ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:25:b3:5b:f9:d3
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
Interrupt:17
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:352221 errors:0 dropped:0 overruns:0 frame:0
TX packets:352221 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:72775884 (72.7 MB) TX bytes:72775884 (72.7 MB)
wlan0 Link encap:Ethernet HWaddr 00:22:fa:ec:20:28
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:31220 errors:0 dropped:0 overruns:0 frame:0
TX packets:25120 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:34701734 (34.7 MB) TX bytes:3582954 (3.5 MB)
$
$
$ rfkill list
0: hp-wifi: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: hp-bluetooth: Bluetooth
Soft blocked: no
Hard blocked: no
2: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: yes
5: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
$
$
$ iwconfig
lo no wireless extensions.
wlan0 IEEE 802.11abgn ESSID:off/any
Mode:Managed Access Point: Not-Associated Tx-Power=off
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
eth0 no wireless extensions.
$
$
$ dmesg -T|egrep 'eth0|wlan0'
[all output here has time stamps > 2 days, so they shouldn't be related to the problem]
$ cat /var/lib/NetworkManager/NetworkManager.state
[main]
NetworkingEnabled=true
WirelessEnabled=false
WWANEnabled=true
$
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