Re: cannot connect to the internet after resume

The network problem happened to me again today. Here's your questions and my answers:

            What happens when you try to access the network?
            - When I try to open a web page, I just get no reply. Sometimes

            Can you ping the router? Other hosts on the lan? Other hosts on the internet? By name? By IP?

• I can ping the router: $ ping 192.168.1.1 PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data. 64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=64.1 ms 64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=1.05 ms 64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=1.06 ms 64 bytes from 192.168.1.1: icmp_seq=4 ttl=64 time=2.13 ms
  • 192.168.1.1 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 2999ms rtt min/avg/max/mdev = 1.057/17.102/64.149/27.166 ms $ I can ping other hosts on the lan: $ ping 192.168.1.11 PING 192.168.1.11 (192.168.1.11) 56(84) bytes of data. 64 bytes from 192.168.1.11: icmp_seq=1 ttl=64 time=3.97 ms 64 bytes from 192.168.1.11: icmp_seq=2 ttl=64 time=0.845 ms 64 bytes from 192.168.1.11: icmp_seq=3 ttl=64 time=0.854 ms 64 bytes from 192.168.1.11: icmp_seq=4 ttl=64 time=0.852 ms
  • 192.168.1.11 ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 2997ms rtt min/avg/max/mdev = 0.845/1.631/3.973/1.352 ms $ I can ping other hosts on the internet: $ ping www.debian.org PING www.debian.org (194.109.137.218) 56(84) bytes of data. 64 bytes from klecker.debian.org (194.109.137.218): icmp_seq=1 ttl=47 time=401 ms 64 bytes from klecker.debian.org (194.109.137.218): icmp_seq=2 ttl=47 time=415 ms 64 bytes from klecker.debian.org (194.109.137.218): icmp_seq=3 ttl=47 time=404 ms 64 bytes from klecker.debian.org (194.109.137.218): icmp_seq=4 ttl=47 time=404 ms
  • www.debian.org ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3321ms rtt min/avg/max/mdev = 401.797/406.603/415.951/5.495 ms $ $ ping www.google.com PING www-china.l.google.com (64.233.189.104) 56(84) bytes of data. 64 bytes from hk-in-f104.google.com (64.233.189.104): icmp_seq=1 ttl=240 time=58.9 ms 64 bytes from hk-in-f104.google.com (64.233.189.104): icmp_seq=2 ttl=240 time=55.1 ms 64 bytes from hk-in-f104.google.com (64.233.189.104): icmp_seq=3 ttl=240 time=54.2 ms 64 bytes from hk-in-f104.google.com (64.233.189.104): icmp_seq=4 ttl=240 time=60.5 ms
  • www-china.l.google.com ping statistics --- 4 packets transmitted, 4 received, 0% packet loss, time 3003ms rtt min/avg/max/mdev = 54.227/57.232/60.585/2.627 ms $

            By speed, do you mean latency or data transfer time?
            - I don't know. When I access a web page, it is finished after

            What are the ping times like (before and after suspend?)
            - Pinging seems ok even when internet is inaccessable.

            How long does name resolution take?
            - Name resolution seems ok.

            Do protocols other than HTTP also suffer? What about other
browsers?
            - Other browsers such as Epiphany and w3m don't work either.

And also, when this happened, I plugged the wire and tried the wired network, it failed too.

Thank you very much.

Best Regards,
Forrest

On Jan 25, 2008 10:12 PM, Celejar <celejar@gmail.com> wrote:
> On Fri, 25 Jan 2008 16:13:12 +0800
>
> "Forrest Y. Yu" <forrest.yu@gmail.com> wrote:
>
> > On Jan 25, 2008 3:07 PM, Celejar <celejar@gmail.com> wrote:
> > >
> > > On Fri, 25 Jan 2008 14:50:23 +0800
> > > "Forrest Y. Yu" <forrest.yu@gmail.com> wrote:
> > >
> > > > Hi Everyone,
> > > >
> > > > I have a laptop Acer Aspire 5610Z, which uses Atheros AR5005G as the
> > > > network controller. Everything is ok, however, sometime when I
resume
> > the
> > > > machine, I cannot access the network anymore.
> > >
> > > Details. What happens when you try to access the network? Can you
> > > ping the router? Other hosts on the lan? Other hosts on the
> > > internet? By name? By IP?
> >
> > Actually, when I use firefox to access a website, it sometimes succeeds,
but
> > the speed is very very slow. It'll take about 5~10 minutes to open a
Google
> > main page. Sometimes it fails to open any pages.
> >
> > I can ping the router. I can even access the route via the web admin
> > interface of the router. The speed looks good too. That's the most weird
> > thing.
> >
> > I have only one host in the lan -- my laptop. Maybe I should connect one
> > more computer for testing.
> >
> > I tried to ping a website by name, it seems reachable. As I mentioned,
> > sometimes web pages is reachable. The speed is intolerable.
>
> By speed, do you mean latency or data transfer time? What are the ping
> times like (before and after suspend? How long does name resolution
> take? Do protocols other than HTTP also suffer? What about other
> browsers?

>
>
>
>
> > > > What confuses me most is, I can still access my Router, whose model
is a
> > > > TP-LINK TL-WR541G/542G.
> > > >
> > > > Neither restarting NetworkManager nor reloading the ath_pci solved
the
> > > > problem. Everything becomes good again after rebooting, but
obviously
> > reboot
> > > > is not a good solution.
> > >
> > > > Cheers,
> > > > Forrest
> > >
> > > Celejar
>
> Celejar
> --
> mailmin.sourceforge.net - remote access via secure (OpenPGP) email
> ssuds.sourceforge.net - A Simple Sudoku Solver and Generator
>
>

-- 
Stupid is as stupid does.



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