Ubuntu

Lost wired connection

Asked by Gill

Ubuntu 8.04 working well on Home Plugs for months. Lost wired connection one night two weeks ago but it was fine the following day. Three days ago, lost wired connection again - downloaded Wicd and removed network manager and managed to restore a wireless connection but Wicd cannot obtain an IP address - any suggestions please?

lo no wireless extensions.

eth0 no wireless extensions.

wifi0 no wireless extensions.

ath0 IEEE 802.11g ESSID:"default" Nickname:""
          Mode:Managed Frequency:2.437 GHz Access Point: 00:11:95:76:75:82
          Bit Rate:48 Mb/s Tx-Power:9 dBm Sensitivity=1/1
          Retry:off RTS thr:off Fragment thr:off
          Power Management:off
          Link Quality=38/70 Signal level=-60 dBm Noise level=-98 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:0 Missed beacon:0

:~$ ifconfig
ath0 Link encap:Ethernet HWaddr 00:12:bf:27:0c:1a
          inet addr:192.168.0.106 Bcast:192.168.0.255 Mask:255.255.255.0
          inet6 addr: fe80::212:bfff:fe27:c1a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:5035 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4557 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3941685 (3.7 MB) TX bytes:745797 (728.3 KB)

eth0 Link encap:Ethernet HWaddr 00:19:66:1e:4c:02
          inet6 addr: fe80::219:66ff:fe1e:4c02/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:434 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B) TX bytes:119770 (116.9 KB)
          Interrupt:252 Base address:0x4000

eth0:avahi Link encap:Ethernet HWaddr 00:19:66:1e:4c:02
          inet addr:169.254.2.122 Bcast:169.254.255.255 Mask:255.255.0.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          Interrupt:252 Base address:0x4000

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:2497 errors:0 dropped:0 overruns:0 frame:0
          TX packets:2497 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:252788 (246.8 KB) TX bytes:252788 (246.8 KB)

wifi0 Link encap:UNSPEC HWaddr 00-12-BF-27-0C-1A-00-00-00-00-00-00-00-00-00-00
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:22630 errors:0 dropped:0 overruns:0 frame:14
          TX packets:4765 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:199
          RX bytes:6014332 (5.7 MB) TX bytes:855757 (835.7 KB)
          Interrupt:17

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Vin Shankar
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Best Vin Shankar (v-shankar) said : 		#1

I don't know an enormous about about this, but I have seen reports elsewhere of Homeplugs being knocked out by power surges, but appearing to be functional except for the fact that they don't provide a connection. If you've had power cuts or similar in your area recently, that could be causing the problem. Otherwise, I'm stumped.

Revision history for this message
Gill (gill-town) said : 		#2

Many thanks for your help - much appreciated. You were right. I reset
the homeplugs and the wired network is up again
Regards

Gill

-----Original Message-----
From: Vin Shankar <email address hidden>
To: <email address hidden>
Subject: Re: [Question #67469]: Lost wired connection
Date: Tue, 14 Apr 2009 22:01:31 -0000

Your question #67469 on Ubuntu changed:
https://answers.launchpad.net/ubuntu/+question/67469

    Status: Open => Answered

Vin Shankar proposed the following answer:
I don't know an enormous about about this, but I have seen reports
elsewhere of Homeplugs being knocked out by power surges, but appearing
to be functional except for the fact that they don't provide a
connection. If you've had power cuts or similar in your area recently,
that could be causing the problem. Otherwise, I'm stumped.

Revision history for this message
Gill (gill-town) said : 		#3

Thanks Vin Shankar, that solved my question.