cannot connect to the internet after resume

On Fri, 25 Jan 2008 14:50:23 +0800
"Forrest Y. Yu" 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?

> 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
--
mailmin.sourceforge.net - remote access via secure (OpenPGP) email
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--

On Feb 20, 2008 2:10 PM, Rich Healey <healey.rich@gmail.com> wrote:

Forrest Y. Yu wrote:
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 I get a reply after long time.

            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 long time. Sometimes it just fails.

            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.
Why not ifdown [primary interface] && ifup [primary interface] ?
it's most likely dropping the routing table, one of my old lappy's used
to do that,.

Regards

Rich Healey

Thank you Rich. Actually I tried to restart the interface, but it didn't work. I even reloaded the ath_pci module, it was useless either.Forrest-- Stupid is as stupid does.