Ubuntu
gnome-nettool package

Internet connection issues after update

Asked by Lukas Venckus

After today's update (2010-September-1st) my internet connection started to disconnect or extremely slow down every few minutes (1-5 min max). I am using ADSL Router and it worked just fine before updating my Ubuntu 10.04 LTS Desktop edition today, so i am sure it's not my router's firewall or other settings regarding router. I cannot really tell if it disconnects completely from the internet or just slows down, but i do not see "Disconnected" notification at the top right corner of the screen, so i guess connection is maintained, only the speed drops to 0. This unstable connection really makes constant internet connectivity requiring tasks to be impossible to do (for example online gaming). Is there a way to fix this issue by myself or should i wait for another update which should remove this problem? Please help.

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actionparsnip
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actionparsnip (andrew-woodhead666) said : 		#1

Can you ive the output of:

sudo lshw -C network

Thanks

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Lukas Venckus (soad-goc) said : 		#2

  *-network
       description: Ethernet interface
       product: RTL8111/8168B PCI Express Gigabit Ethernet controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 02
       serial: 00:21:85:1e:04:7d
       size: 100MB/s
       capacity: 1GB/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list rom 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 ip=192.168.1.69 latency=0 link=yes multicast=yes port=MII speed=100MB/s
       resources: irq:26 ioport:e800(size=256) memory:fdfff000-fdffffff(prefetchable) memory:fdfe0000-fdfeffff(prefetchable) memory:febf0000-febfffff(prefetchable)

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Best actionparsnip (andrew-woodhead666) said : 		#3

ok you do have an IP address, try running:

gksudo gedit /etc/resolv.conf

delete ALL text and add these 2 lines:

nameserver 8.8.8.8
nameserver 8.8.4.4

save the new file, close gedit and all browsers then retry web browsing. Is it ok?

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Lukas Venckus (soad-goc) said : 		#4

I did what you said and it really works just fine, only thing that i experienced is that launchpad doesnt always want to start loading, but i guess it's just an issue with their server or something. All other pages seem to be doing allright, just like downloads and online games, thank you. And just for my curiosity, will this make me get new IP adress or will i have any other effects? Thank you once again for helping!

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actionparsnip (andrew-woodhead666) said : 		#5

Then you need to apply the setting in network manager so that they survive the reboot as /etc/resolv.conf is generated at boot. YOu will have no other addressing changes in any way. You are just using Google's public DNS servers.

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Lukas Venckus (soad-goc) said : 		#6

Thanks actionparsnip, that solved my question.