Wired connection not established
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| network-manager (Ubuntu) |
Confirmed
|
Undecided
|
Unassigned | ||
Bug Description
Hi. I have a brand new Asus X53E laptop running only Ubuntu 12.04 and have a problem with establishing a wired internet connection at startup. I usually have to reboot several times before a connection is established. Once it is establshed, there is no problem and the connection lasts. If I manually disconnect a working connection, the same problem exists.
The wired connection on my desktop, running a previous version of Ubuntu works fine. I tried installing WICD, uninstalled network manager, and rebooted. Same problem. So I reinstalled gnome network manager and uninstalled WICD. Again, same problem.
However, I did find that by bypassing the router, the wired network will establish communication via gnome network manager on my laptop. The problem is not entirely in the router, however, because my desktop, running an older version of Ubuntu, can establish a wired connection via the router.
I also found that although the laptop connection cannot be easily established with the router in place, a wireless connection can be easily established. So for some reason, the problem is only with the wired connection when using the router.
Lastly, just to make sure the problem is not in the LAN cable, I unplugged the working cable from my desktop and tried it with my laptop, and same problem. So it is not the cable.
The system log errors for one cycle of disconnect and connect are:
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E vpnagent[1018]: Function: tableCallbackHa
Jun 30 08:29:28 john-K53E dhclient: Internet Systems Consortium DHCP Client 4.1-ESV-R4
Jun 30 08:29:28 john-K53E dhclient: Copyright 2004-2011 Internet Systems Consortium.
Jun 30 08:29:28 john-K53E dhclient: All rights reserved.
Jun 30 08:29:28 john-K53E dhclient: For info, please visit https:/
Jun 30 08:29:28 john-K53E dhclient:
Jun 30 08:29:28 john-K53E vpnagent[1018]: A network interface has gone down.
Jun 30 08:29:28 john-K53E vpnagent[1018]: Function: logInterfaces File: RouteMgr.cpp Line: 2076 Invoked Function: logInterfaces Return Code: 0 (0x00000000) Description: IP Address Interface List:
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E vpnagent[1018]: Function: tableCallbackHa
Jun 30 08:29:28 john-K53E vpnagent[1018]: A new network interface has been detected.
Jun 30 08:29:28 john-K53E vpnagent[1018]: Function: logInterfaces File: RouteMgr.cpp Line: 2076 Invoked Function: logInterfaces Return Code: 0 (0x00000000) Description: IP Address Interface List: FE80:0:
Jun 30 08:29:28 john-K53E NetworkManager[
Jun 30 08:29:28 john-K53E dhclient: Listening on LPF/eth0/
Jun 30 08:29:28 john-K53E dhclient: Sending on LPF/eth0/
Jun 30 08:29:28 john-K53E dhclient: Sending on Socket/fallback
Jun 30 08:29:28 john-K53E dhclient: DHCPREQUEST of 10.0.1.12 on eth0 to 255.255.255.255 port 67
Jun 30 08:29:29 john-K53E vpnagent[1018]: Function: tableCallbackHa
Jun 30 08:29:30 john-K53E vpnagent[1018]: Function: tableCallbackHa
Jun 30 08:29:31 john-K53E dhclient: DHCPREQUEST of 10.0.1.12 on eth0 to 255.255.255.255 port 67
Jun 30 08:29:38 john-K53E kernel: [ 445.465187] eth0: no IPv6 routers present
Jun 30 08:29:39 john-K53E dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Jun 30 08:29:42 john-K53E dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 3
Jun 30 08:29:45 john-K53E dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 5
Jun 30 08:29:49 john-K53E NetworkManager[
Jun 30 08:29:49 john-K53E NetworkManager[
Jun 30 08:29:49 john-K53E NetworkManager[
Jun 30 08:29:49 john-K53E NetworkManager[
Jun 30 08:29:50 john-K53E dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 10
Jun 30 08:30:00 john-K53E dhclient: DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 18
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E NetworkManager[
Jun 30 08:30:14 john-K53E vpnagent[1018]: Function: tableCallbackHa
==============
The system is not a dual boot. Only Ubuntu. Below is more information
john@john-K53E:~$ sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list
[sudo] password for john:
*-network DISABLED
description: Wireless interface
product: AR9485 Wireless Network Adapter
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:02:00.0
logical name: wlan0
version: 01
serial: 44:6d:57:21:09:b1
width: 64 bits
clock: 33MHz
resources: irq:17 memory:
*-network
description: Ethernet interface
product: AR8151 v2.0 Gigabit Ethernet
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: c0
serial: c8:60:00:50:21:1a
size: 1Gbit/s
capacity: 1Gbit/s
width: 64 bits
clock: 33MHz
resources: irq:53 memory:
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 12.04 LTS
Release: 12.04
Codename: precise
Linux john-K53E 3.2.0-26-
0: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no
1: asus-wlan: Wireless LAN
Soft blocked: yes
Hard blocked: no
john@john-K53E:~$
| Ubuntu Foundations Team Bug Bot (crichton) wrote | #1 |
| tags: | added: bot-comment |
| affects: | ubuntu → network-manager-applet (Ubuntu) |
| Thomas Hood (jdthood) wrote Re: wired connection fails on startup 12.04 | #2 |
| affects: | network-manager-applet (Ubuntu) → network-manager (Ubuntu) |
| Changed in network-manager (Ubuntu): | |
| status: | New → Incomplete |
| summary: |
- wired connection fails on startup 12.04 + Wired connection not established |
| tags: | added: precise |
| Launchpad Janitor (janitor) wrote | #3 |
| Changed in network-manager (Ubuntu): | |
| status: | Incomplete → Expired |
| larytet (larytet-48904418) wrote | #4 |
| Changed in network-manager (Ubuntu): | |
| status: | Expired → Confirmed |
| larytet (larytet-48904418) wrote | #5 |
Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https:/
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