13.10 RTL8111/8168/8411 slow internet

**dannyboy79** · January 25th, 2014

I am trying out 13.10 Xubuntu running kernel 3.13 on an external hard drive and it appears like my browsing speed is really slow and I don't know whether to attribute it to the fact the installation is running from a usb 2.0 hard drive OR if it's the rt8169 driver built into Xubuntu 13.10. Is there any tests I can run or whatever to figure out what's causing the slow down? I'm running namebench to check and make sure i'm using the fastest dns servers and I am also going to try out google chrome stable 64bit because firefox just seems slow!

**dannyboy79** · February 2nd, 2014

wow, no one else has this chipset with ubuntu 13.10? it's on my Z87 motherboard and I would think people are experiencing this as well. Maybe it only affects 64bit and or xubuntu? I can't even install steam from Ubuntu software center, i click buy, then it brings up the terms of use which spins and spins forever and then it returns "could not resolve blah blah". I have to click decline just to try again only for it to fail again. I think it finally worked on the 4th try.

very interesting syslog output

Code:

Feb  1 21:15:32 saucy-haswell kernel: [    0.401021] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
Feb  1 21:15:32 saucy-haswell kernel: [    0.401026] r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
Feb  1 21:15:32 saucy-haswell kernel: [    0.406345] r8169 0000:03:00.0: irq 43 for MSI/MSI-X
Feb  1 21:15:32 saucy-haswell kernel: [    0.406458] r8169 0000:03:00.0 eth0: RTL8168g/8111g at 0xffffc90000c38000, d4:3d:7e:e2:27:3b, XID 0c000800 IRQ 43
Feb  1 21:15:32 saucy-haswell kernel: [    0.406459] r8169 0000:03:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
Feb  1 21:15:32 saucy-haswell NetworkManager[718]: <info> (eth2): new Ethernet device (driver: 'r8169' ifindex: 2)
Feb  1 21:15:32 saucy-haswell kernel: [    1.863210] r8169 0000:03:00.0 eth2: link down
Feb  1 21:15:32 saucy-haswell kernel: [    1.863216] r8169 0000:03:00.0 eth2: link down
Feb  1 21:15:35 saucy-haswell kernel: [    4.502177] r8169 0000:03:00.0 eth2: link up
Feb  1 21:15:36 saucy-haswell kernel: [    5.503225] r8169 0000:03:00.0 eth2: link down
Feb  1 21:15:40 saucy-haswell kernel: [    8.987381] r8169 0000:03:00.0 eth2: link up
Feb  1 21:15:41 saucy-haswell kernel: [    9.988401] r8169 0000:03:00.0 eth2: link down
Feb  1 21:15:45 saucy-haswell kernel: [   14.389038] r8169 0000:03:00.0 eth2: link up
Feb  1 21:15:46 saucy-haswell kernel: [   15.374854] r8169 0000:03:00.0 eth2: link down
Feb  1 21:15:50 saucy-haswell kernel: [   18.879517] r8169 0000:03:00.0 eth2: link up
Feb  1 21:15:51 saucy-haswell kernel: [   19.881021] r8169 0000:03:00.0 eth2: link down
Feb  1 21:15:55 saucy-haswell kernel: [   24.398022] r8169 0000:03:00.0 eth2: link up
Feb  1 21:15:56 saucy-haswell kernel: [   25.391157] r8169 0000:03:00.0 eth2: link down
Feb  1 21:15:59 saucy-haswell kernel: [   27.986939] r8169 0000:03:00.0 eth2: link up
Feb  1 21:28:47 saucy-haswell kernel: [    0.402081] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
Feb  1 21:28:47 saucy-haswell kernel: [    0.402086] r8169 0000:03:00.0: can't disable ASPM; OS doesn't have ASPM control
Feb  1 21:28:47 saucy-haswell kernel: [    0.406869] r8169 0000:03:00.0: irq 43 for MSI/MSI-X
Feb  1 21:28:47 saucy-haswell kernel: [    0.406980] r8169 0000:03:00.0 eth0: RTL8168g/8111g at 0xffffc90000c38000, d4:3d:7e:e2:27:3b, XID 0c000800 IRQ 43
Feb  1 21:28:47 saucy-haswell kernel: [    0.406982] r8169 0000:03:00.0 eth0: jumbo features [frames: 9200 bytes, tx checksumming: ko]
Feb  1 21:28:47 saucy-haswell NetworkManager[734]: <info> (eth2): new Ethernet device (driver: 'r8169' ifindex: 2)
Feb  1 21:28:47 saucy-haswell kernel: [    1.575879] r8169 0000:03:00.0 eth2: link down
Feb  1 21:28:47 saucy-haswell kernel: [    1.575927] r8169 0000:03:00.0 eth2: link down
Feb  1 21:28:50 saucy-haswell kernel: [    4.245928] r8169 0000:03:00.0 eth2: link up
Feb  1 21:28:51 saucy-haswell kernel: [    5.230723] r8169 0000:03:00.0 eth2: link down
Feb  1 21:28:54 saucy-haswell kernel: [    8.751562] r8169 0000:03:00.0 eth2: link up
Feb  1 21:28:55 saucy-haswell kernel: [    9.736904] r8169 0000:03:00.0 eth2: link down
Feb  1 21:29:00 saucy-haswell kernel: [   14.101403] r8169 0000:03:00.0 eth2: link up
Feb  1 21:29:01 saucy-haswell kernel: [   15.102398] r8169 0000:03:00.0 eth2: link down
Feb  1 21:29:04 saucy-haswell kernel: [   18.622758] r8169 0000:03:00.0 eth2: link up
Feb  1 21:29:05 saucy-haswell kernel: [   19.608568] r8169 0000:03:00.0 eth2: link down
Feb  1 21:29:10 saucy-haswell kernel: [   24.161134] r8169 0000:03:00.0 eth2: link up
Feb  1 21:29:11 saucy-haswell kernel: [   25.162696] r8169 0000:03:00.0 eth2: link down
Feb  1 21:29:13 saucy-haswell kernel: [   27.800400] r8169 0000:03:00.0 eth2: link up
Feb  1 21:51:05 saucy-haswell kernel: [ 1338.821698] r8169 0000:03:00.0 eth2: link down
Feb  1 21:51:08 saucy-haswell kernel: [ 1341.341979] r8169 0000:03:00.0 eth2: link up
Feb  1 21:51:09 saucy-haswell kernel: [ 1342.340383] r8169 0000:03:00.0 eth2: link down
Feb  1 21:51:12 saucy-haswell kernel: [ 1345.783690] r8169 0000:03:00.0 eth2: link up
Feb  1 21:51:13 saucy-haswell kernel: [ 1346.783681] r8169 0000:03:00.0 eth2: link down
Feb  1 21:51:18 saucy-haswell kernel: [ 1351.504926] r8169 0000:03:00.0 eth2: link up
Feb  1 21:51:19 saucy-haswell kernel: [ 1352.505480] r8169 0000:03:00.0 eth2: link down
Feb  1 21:51:22 saucy-haswell kernel: [ 1356.037329] r8169 0000:03:00.0 eth2: link up
Feb  1 21:51:23 saucy-haswell kernel: [ 1357.032605] r8169 0000:03:00.0 eth2: link down
Feb  1 21:51:28 saucy-haswell kernel: [ 1361.496623] r8169 0000:03:00.0 eth2: link up
Feb  1 21:51:29 saucy-haswell kernel: [ 1362.481940] r8169 0000:03:00.0 eth2: link down
Feb  1 21:51:32 saucy-haswell kernel: [ 1365.161561] r8169 0000:03:00.0 eth2: link up

so currently my only active eth is eth2 for whatever reason. the module r18169 provided by default in ubuntu 13.10 is not working properly with this chipset.

**varunendra** · February 2nd, 2014

May we see the outputs of -

Code:

sudo lshw -numeric -C network
ifconfig -a
sudo ethtool eth0
sudo ethtool eth2

And have you considered trying the proprietary (r8168) driver yet? Assuming it supports your card.

**dannyboy79** · February 3rd, 2014

ok, i've downloaded and installed the actual realtek lan driver r8168, the latest version i could find. It's better BUT still have weird things occuring like sometimes failing to connect to us.ubuntu.archieve.com (or whatever when installing packages with apt-get) Here's the info you're requesting

Code:

*-network               
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10EC:8168]
       vendor: Realtek Semiconductor Co., Ltd. [10EC]
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth2
       version: 0c
       serial: d4:3d:7e:e2:27:3b
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8168 driverversion=8.037.00-NAPI duplex=full ip=192.168.0.13 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:42 ioport:d000(size=256) memory:f7c00000-f7c00fff memory:f0000000-f0003fff

Code:

eth2      Link encap:Ethernet  HWaddr d4:3d:7e:e2:27:3b  
          inet addr:192.168.0.13  Bcast:192.168.0.255  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:6532737 errors:0 dropped:0 overruns:0 frame:0
          TX packets:12052130 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:4044550912 (4.0 GB)  TX bytes:5624790208 (5.6 GB)
          Interrupt:42 Base address:0x8000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:42688131 errors:0 dropped:0 overruns:0 frame:0
          TX packets:42688131 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2720448690 (2.7 GB)  TX bytes:2720448690 (2.7 GB)

Code:

Settings for eth0:
Cannot get device settings: No such device
Cannot get wake-on-lan settings: No such device
Cannot get message level: No such device
Cannot get link status: No such device
No data available

Code:

Settings for eth2:
	Supported ports: [ TP ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Advertised pause frame use: Symmetric Receive-only
	Advertised auto-negotiation: Yes
	Speed: 1000Mb/s
	Duplex: Full
	Port: Twisted Pair
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: on
	MDI-X: Unknown
	Supports Wake-on: pumbg
	Wake-on: g
	Current message level: 0x00000033 (51)
			       drv probe ifdown ifup
	Link detected: yes

Here's some syslog info as well

Code:

Feb  2 09:08:51 saucy-haswell kernel: [41980.944518] r8168: module verification failed: signature and/or required key missing - tainting kernel
Feb  2 09:08:51 saucy-haswell kernel: [41980.944724] r8168 Gigabit Ethernet driver 8.037.00-NAPI loaded
Feb  2 09:08:51 saucy-haswell kernel: [41980.944810] r8168 0000:03:00.0: irq 43 for MSI/MSI-X
Feb  2 09:08:51 saucy-haswell kernel: [41980.957672] r8168: This product is covered by one or more of the following patents: US6,570,884, US6,115,776, and US6,327,625.
Feb  2 09:08:51 saucy-haswell kernel: [41980.957675] r8168  Copyright (C) 2013  Realtek NIC software team <nicfae@realtek.com> 
Feb  2 09:08:51 saucy-haswell NetworkManager[734]: <info> (eth2): new Ethernet device (driver: 'r8168' ifindex: 3)
Feb  2 09:08:57 saucy-haswell kernel: [41987.037558] r8168: eth2: link up
Feb  2 09:14:59 saucy-haswell kernel: [    0.400726] r8168: module verification failed: signature and/or required key missing - tainting kernel
Feb  2 09:14:59 saucy-haswell kernel: [    0.400909] r8168 Gigabit Ethernet driver 8.037.00-NAPI loaded
Feb  2 09:14:59 saucy-haswell kernel: [    0.400996] r8168 0000:03:00.0: irq 42 for MSI/MSI-X
Feb  2 09:14:59 saucy-haswell kernel: [    0.413721] r8168: This product is covered by one or more of the following patents: US6,570,884, US6,115,776, and US6,327,625.
Feb  2 09:14:59 saucy-haswell kernel: [    0.413723] r8168  Copyright (C) 2013  Realtek NIC software team <nicfae@realtek.com> 
Feb  2 09:14:59 saucy-haswell NetworkManager[741]: <info> (eth2): new Ethernet device (driver: 'r8168' ifindex: 2)
Feb  2 09:15:05 saucy-haswell kernel: [    7.602801] r8168: eth2: link up
Feb  2 09:15:06 saucy-haswell kernel: [    8.601472] r8168: eth2: link down
Feb  2 09:15:10 saucy-haswell kernel: [   12.635825] r8168: eth2: link up
Feb  2 09:15:11 saucy-haswell kernel: [   13.634500] r8168: eth2: link down
Feb  2 09:15:14 saucy-haswell kernel: [   16.669478] r8168: eth2: link up
Feb  2 09:15:15 saucy-haswell kernel: [   17.668168] r8168: eth2: link down
Feb  2 09:15:19 saucy-haswell kernel: [   21.702531] r8168: eth2: link up
Feb  2 09:15:20 saucy-haswell kernel: [   22.701189] r8168: eth2: link down
Feb  2 09:15:23 saucy-haswell kernel: [   25.736187] r8168: eth2: link up
Feb  2 09:15:24 saucy-haswell kernel: [   26.734846] r8168: eth2: link down
Feb  2 09:15:27 saucy-haswell kernel: [   29.769779] r8168: eth2: link up
Feb  2 09:28:27 saucy-haswell kernel: [    0.400749] r8168: module verification failed: signature and/or required key missing - tainting kernel
Feb  2 09:28:27 saucy-haswell kernel: [    0.400926] r8168 Gigabit Ethernet driver 8.037.00-NAPI loaded
Feb  2 09:28:27 saucy-haswell kernel: [    0.401011] r8168 0000:03:00.0: irq 42 for MSI/MSI-X
Feb  2 09:28:27 saucy-haswell kernel: [    0.413743] r8168: This product is covered by one or more of the following patents: US6,570,884, US6,115,776, and US6,327,625.
Feb  2 09:28:27 saucy-haswell kernel: [    0.413745] r8168  Copyright (C) 2013  Realtek NIC software team <nicfae@realtek.com> 
Feb  2 09:28:27 saucy-haswell NetworkManager[697]: <info> (eth2): new Ethernet device (driver: 'r8168' ifindex: 2)
Feb  2 09:28:33 saucy-haswell kernel: [    8.094465] r8168: eth2: link up

**varunendra** · February 3rd, 2014

Originally Posted by dannyboy79

ok, i've downloaded and installed the actual realtek lan driver r8168, the latest version i could find. It's better BUT still have weird things occuring like sometimes failing to connect to us.ubuntu.archieve.com (or whatever when installing packages with apt-get)

Apart from installing with apt-get, is the speed and connectivity otherwise good? For example, if you start downloading Ubuntu ISO via torrent, does the connectivity/speed remain good? If yes, I would suspect the problem to be DNS related. Maybe try changing to OpenDNS or the google ones (8.8.8.8, 8.8.4.4).

The outputs look solid and there are no packet drops or frame errors either.

**dannyboy79** · February 3rd, 2014

but you can see it has an issue staying UP. via syslog you can clearly see it says link down, link up, link down, link up, link down, link up. That right there is not a DNS issue, thats the browser having trouble because the NIC is going up and down.

My entire network already uses the google dns servers and my other machines (windows) don't have any issue surfing the web

**dannyboy79** · February 4th, 2014

had to perform a fresh install due to a stupid error by my own hand. Anyway, before I install and use the realtek r8168 driver i thought i'd give the default kernel module another shot. (r8169) I am still getting very weird issues with the NIC. For example I couldn't even install a game from steam, i got the following message:

Here's the same info but using the r8169 driver

Code:

  *-network               
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10EC:8168]
       vendor: Realtek Semiconductor Co., Ltd. [10EC]
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth2
       version: 0c
       serial: d4:3d:7e:e2:27:3b
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=full firmware=rtl8168g-2_0.0.1 02/06/13 ip=192.168.0.13 latency=0 link=yes multicast=yes port=MII speed=1Gbit/s
       resources: irq:43 ioport:d000(size=256) memory:f7c00000-f7c00fff memory:f0000000-f0003fff

Code:

eth2      Link encap:Ethernet  HWaddr d4:3d:7e:e2:27:3b  
          inet addr:192.168.0.13  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::d63d:7eff:fee2:273b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:653363 errors:0 dropped:0 overruns:0 frame:0
          TX packets:595939 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:755958044 (755.9 MB)  TX bytes:240873107 (240.8 MB)

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:65536  Metric:1
          RX packets:6003 errors:0 dropped:0 overruns:0 frame:0
          TX packets:6003 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:502239 (502.2 KB)  TX bytes:502239 (502.2 KB)

Code:

Settings for eth0:
Cannot get device settings: No such device
Cannot get wake-on-lan settings: No such device
Cannot get message level: No such device
Cannot get link status: No such device
No data available

Code:

Settings for eth2:
	Supported ports: [ TP MII ]
	Supported link modes:   10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Half 1000baseT/Full 
	Supported pause frame use: No
	Supports auto-negotiation: Yes
	Advertised link modes:  10baseT/Half 10baseT/Full 
	                        100baseT/Half 100baseT/Full 
	                        1000baseT/Full 
	Advertised pause frame use: Symmetric Receive-only
	Advertised auto-negotiation: Yes
	Link partner advertised link modes:  10baseT/Half 10baseT/Full 
	                                     100baseT/Half 100baseT/Full 
	                                     1000baseT/Half 1000baseT/Full 
	Link partner advertised pause frame use: Symmetric Receive-only
	Link partner advertised auto-negotiation: Yes
	Speed: 1000Mb/s
	Duplex: Full
	Port: MII
	PHYAD: 0
	Transceiver: internal
	Auto-negotiation: on
	Supports Wake-on: pumbg
	Wake-on: g
	Current message level: 0x00000033 (51)
			       drv probe ifdown ifup
	Link detected: yes

AND I continue to have issues with the build in r8169 driver. Can't even issue an apt-get update

Code:

Ign http://extras.ubuntu.com saucy InRelease                                                                                         
Hit http://extras.ubuntu.com saucy Release.gpg                                                                                       
Hit http://extras.ubuntu.com saucy Release                                                                                           
Ign https://private-ppa.launchpad.net saucy InRelease                                                                                
Hit http://extras.ubuntu.com saucy/main Sources                                                                                      
Hit http://extras.ubuntu.com saucy/main amd64 Packages                                                                               
Hit http://extras.ubuntu.com saucy/main i386 Packages                                                                                
Ign http://extras.ubuntu.com saucy/main Translation-en_US                                                                            
Ign http://extras.ubuntu.com saucy/main Translation-en                                                                               
Err http://repo.steampowered.com precise InRelease                                                                                   
  
Err http://repo.steampowered.com precise Release.gpg                                                                                 
  Could not resolve 'repo.steampowered.com'
Err http://us.archive.ubuntu.com saucy InRelease                                                             
  
Err http://us.archive.ubuntu.com saucy-updates InRelease                                                     
  
Err http://us.archive.ubuntu.com saucy-backports InRelease                                                   
  
Err http://us.archive.ubuntu.com saucy-security InRelease                                                    
  
Err http://us.archive.ubuntu.com saucy-proposed InRelease              
  
Err http://us.archive.ubuntu.com saucy Release.gpg                     
  Could not resolve 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com saucy-updates Release.gpg             
  Could not resolve 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com saucy-backports Release.gpg           
  Could not resolve 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com saucy-security Release.gpg            
  Could not resolve 'us.archive.ubuntu.com'
Err http://us.archive.ubuntu.com saucy-proposed Release.gpg            
  Could not resolve 'us.archive.ubuntu.com'
Err http://archive.canonical.com saucy InRelease                       
  
Err http://archive.canonical.com saucy Release.gpg                     
  Could not resolve 'archive.canonical.com'
Err http://dl.google.com stable InRelease
  
Err http://dl.google.com stable InRelease
  
Err http://dl.google.com stable Release.gpg
  Could not resolve 'dl.google.com'
Err http://dl.google.com stable Release.gpg
  Could not resolve 'dl.google.com'
Ign https://private-ppa.launchpad.net saucy Release.gpg
Ign https://private-ppa.launchpad.net saucy Release
Get:1 https://private-ppa.launchpad.net saucy/main amd64 Packages/DiffIndex [377 B]
Ign https://private-ppa.launchpad.net saucy/main amd64 Packages/DiffIndex
Ign https://private-ppa.launchpad.net saucy/main i386 Packages/DiffIndex
Hit https://private-ppa.launchpad.net saucy/main amd64 Packages
Hit https://private-ppa.launchpad.net saucy/main i386 Packages
Get:2 https://private-ppa.launchpad.net saucy/main Translation-en_US [370 B]
Ign https://private-ppa.launchpad.net saucy/main Translation-en_US
Ign https://private-ppa.launchpad.net saucy/main Translation-en
Reading package lists... Done
W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/InRelease  

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/InRelease  

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/InRelease  

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-security/InRelease  

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/saucy/InRelease  

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-proposed/InRelease  

W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/InRelease  

W: Failed to fetch http://dl.google.com/linux/talkplugin/deb/dists/stable/InRelease  

W: Failed to fetch http://repo.steampowered.com/steam/dists/precise/InRelease  

W: Failed to fetch http://repo.steampowered.com/steam/dists/precise/Release.gpg  Could not resolve 'repo.steampowered.com'

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy/Release.gpg  Could not resolve 'us.archive.ubuntu.com'

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-updates/Release.gpg  Could not resolve 'us.archive.ubuntu.com'

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-backports/Release.gpg  Could not resolve 'us.archive.ubuntu.com'

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-security/Release.gpg  Could not resolve 'us.archive.ubuntu.com'

W: Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/saucy-proposed/Release.gpg  Could not resolve 'us.archive.ubuntu.com'

W: Failed to fetch http://archive.canonical.com/ubuntu/dists/saucy/Release.gpg  Could not resolve 'archive.canonical.com'

W: Failed to fetch http://dl.google.com/linux/chrome/deb/dists/stable/Release.gpg  Could not resolve 'dl.google.com'

W: Failed to fetch http://dl.google.com/linux/talkplugin/deb/dists/stable/Release.gpg  Could not resolve 'dl.google.com'

W: Some index files failed to download. They have been ignored, or old ones used instead.

**varunendra** · February 4th, 2014

Originally Posted by dannyboy79

but you can see it has an issue staying UP. via syslog you can clearly see it says link down, link up, link down, link up, link down, link up. That right there is not a DNS issue, thats the browser having trouble because the NIC is going up and down.

Yes, I ignored those ups/downs earlier, thought it might have been during a physical plug/unplug attempts. If it's happening by itself, the connection is clearly being reset either due to a bad physical connection problem, or due to the driver not being able to keep up with the Gigabit speeds (or due to something I couldn't think of).

Even if the same connection is working fine in Windows session on the same machine (if it is dualbooting), I'd recommend trying a different, tested good cable just to rule out the physical connection problem.

Assuming the problem remains the same even after the cable change, may we try a forced lower speed? A 100 Mb/s FD would be much better than practically nothing -

Code:

sudo ethtool -s eth2 speed 100 duplex full autoneg off

If this doesn't help, then to reset above to current defaults -

Code:

sudo ethtool -s eth2 speed 1000 duplex full  autoneg on

(although I think only "-s eth2 autoneg on" is sufficient, but to be extra safe)

**dannyboy79** · February 7th, 2014

i have solved it but it did take a lot of googling and reading. i am still using the included r8169 module that came with Ubuntu 13.10 BUT I did disable ipv6 AND I commented out "dns=dnsmasq" within /etc/NetworkManager/NetworkManager.conf. then i restarted my machine and then instead of 127.0.1.1 showing up as my dns server (no idea why that would be a dns server), now the router's ip address was being used which is the way it should be. I did also remove "wins" from the nsswitch.conf file, the line that reads hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4