StandBy sometimes breaks DNS (XP)

Thanks to John Navas for his previous help with this issue:

Losing connection (Computer->Wireless->Router->DSLmodem)
http://groups.google.com/group/alt.i...73fb6539bbabf1

I removed the SBC Yahoo DSL software and things seem better. I still
sometimes have a problem when my notebook returns from StandBy. It
looks to me like it's some issue with either XP (most likely) or the
router no longer having the ability to do correct DNS resolutions.
Here are the details:

- I can get to my router (since I use the IP addr); it seems to be able
to ping and trace all addresses using either IP addr or host/domainname
- FireFox and cmd line (ping, ftp) won't let me get to anything unless
I use the IP addr
- today I tried for 30 mins to fix it before rebooting (and then things
worked fine again)

Here's what I tried (some multiple times):

ipconfig /all, /renew, /refresh, /displaydns, /flushdns, /registerdns
nslookup
nbtstat -R

I also tried going into the network properties and entering the IP addr
for dns.sbcglobal.net as the DNS server (and refreshing everything) but
it still wouldn't work.

I wonder if it is related to either of these:

How Internet Explorer uses the cache for DNS host entries
http://support.microsoft.com/default...B;en-us;263558

How to Disable Client-Side DNS Caching in Windows XP (and 2003)
http://support.microsoft.com/default...en-us%3B318803

(I would have tried the cmds in the second one but I couldn't access
the article while it was broken.)

Any other thoughts? Thanks!

<sdaws06@gmail.com> wrote in message
news:1159709622.111070.276160@m7g2000cwm.googlegro ups.com...
> Thanks to John Navas for his previous help with this issue:
>
> Losing connection (Computer->Wireless->Router->DSLmodem)
> http://groups.google.com/group/alt.i...73fb6539bbabf1
>
> I removed the SBC Yahoo DSL software and things seem better. I still
> sometimes have a problem when my notebook returns from StandBy. It
> looks to me like it's some issue with either XP (most likely) or the
> router no longer having the ability to do correct DNS resolutions.
> Here are the details:

I doubt that XP has anything to do with it, as I have awoken my laptop out
of standby mode countless number of times using XP with either a NAT router
wireless or FW appliance wired with no problems, ever. It has to be
something else some software that you have on the machine like a personal FW
maybe or some other kind of software mis-configuration happening.

> Any other thoughts? Thanks!
>

If you put that machine on a wire connection and it's not happening there,
then it's not XP.

Duane :)

"Duane Arnold" <Yeah-Don't-bother-@that's-right.BET> wrote in message
news:KIQTg.5425$o71.3843@newsread3.news.pas.earthl ink.net...
>
> <sdaws06@gmail.com> wrote in message
> news:1159709622.111070.276160@m7g2000cwm.googlegro ups.com...
> > Thanks to John Navas for his previous help with this issue:
> >
> > Losing connection (Computer->Wireless->Router->DSLmodem)
> >
http://groups.google.com/group/alt.i...73fb6539bbabf1
> >
> > I removed the SBC Yahoo DSL software and things seem better. I still
> > sometimes have a problem when my notebook returns from StandBy. It
> > looks to me like it's some issue with either XP (most likely) or the
> > router no longer having the ability to do correct DNS resolutions.
> > Here are the details:
>
> I doubt that XP has anything to do with it, as I have awoken my laptop out
> of standby mode countless number of times using XP with either a NAT
router
> wireless or FW appliance wired with no problems, ever. It has to be
> something else some software that you have on the machine like a personal
FW
> maybe or some other kind of software mis-configuration happening.

Yes - but USB modems / ADSL links often do not like standby mode and do not
recover well, since the ADSL link is often driven as if it was dialup, and
the modem and network get out of sync.

you might be able to reset the modem once your PC is back up, or disconnect
/ reconnect.

A router would be a good fix - or dont use standby.
>
> > Any other thoughts? Thanks!
> >
>
> If you put that machine on a wire connection and it's not happening there,
> then it's not XP.
>
> Duane :)
>
--
Regards

stephen_hope@xyzworld.com - replace xyz with ntl

Duane Arnold wrote:
> I doubt that XP has anything to do with it, as I have awoken my laptop out
> of standby mode countless number of times using XP with either a NAT router
> wireless or FW appliance wired with no problems, ever. It has to be
> something else some software that you have on the machine like a personal FW
> maybe or some other kind of software mis-configuration happening.

It might be the firewall or some other component but I'm not sure how
those get into a state of allowing IP addrs and not names. We have
another computer that's also wirelessly connected to the router and it
doesn't ever have this issue (it doesn't go into standby though since
it's a desktop). I think it might have something to do with the length
of time that I don't connect since not all StandBy's cause the problem.
Sometimes ipconfig /renew & /refresh fixes it, sometimes using the
routers diagnostics (ping/traceroute) gets things working again,
sometimes FixDHCP script works.

> If you put that machine on a wire connection and it's not happening there,
> then it's not XP.

I don't think it would happen there but I haven't plugged it in for
quite a while. The problems seemed to start happening after I switched
from another DSL provider to Yahoo SBC (but they're no help).

stephen wrote:
> Yes - but USB modems / ADSL links often do not like standby mode and do not
> recover well, since the ADSL link is often driven as if it was dialup, and
> the modem and network get out of sync.

I think this is a possibility. I've seen this mentioned before and the
suggestion was to delete all other connections (dialup, etc). I have a
couple old ones leftover so I could try that.

> you might be able to reset the modem once your PC is back up, or disconnect
> / reconnect.

I used to have the problem (last year) where the wireless device
(AirLink+ USB) wouldn't properly wakeup when returning from StandBy but
once I moved that from the built-in USB plug to a USB 2.0 pcmcia card,
I no longer had that issue. In that case, the device was completely
inaccessible - currently it seems to be working fine - I just can't use
names sometimes after StandBy.

> A router would be a good fix - or dont use standby.

I do have a router. That might be part of the problem.

Thanks for your message Dave - I'll give that a try.
For others, here's the doc on doing this:

http://support.microsoft.com/default...en-us%3B318803

Dave Rudisill wrote:
> >"Duane Arnold" <Yeah-Don't-bother-@that's-right.BET> wrote:
>
> >
> ><sdaws06@gmail.com> wrote in message
> >news:1159709622.111070.276160@m7g2000cwm.googlegr oups.com...
> >> Thanks to John Navas for his previous help with this issue:
> >>
> >> Losing connection (Computer->Wireless->Router->DSLmodem)
> >> http://groups.google.com/group/alt.i...73fb6539bbabf1
> >>
> >> I removed the SBC Yahoo DSL software and things seem better. I still
> >> sometimes have a problem when my notebook returns from StandBy. It
> >> looks to me like it's some issue with either XP (most likely) or the
> >> router no longer having the ability to do correct DNS resolutions.
> >> Here are the details:
> >
> >I doubt that XP has anything to do with it, as I have awoken my laptop out
> >of standby mode countless number of times using XP with either a NAT router
> >wireless or FW appliance wired with no problems, ever. It has to be
> >something else some software that you have on the machine like a personal FW
> >maybe or some other kind of software mis-configuration happening.
> >
> >
> >Duane :)
>
> I had the same problem. It was an XP problem. Disabling client-side DNS
> caching fixed it. I simply disabled the DNS Client service.
>
> Jeff is the guy who solved the problem for me.
>
> --
> Dave