Tech Support > Computers & Technology > Internet & Broadband > Modem will not 'find' ADSL ... but line is OK
Modem will not 'find' ADSL ... but line is OK
Posted by Tx2 on November 29th, 2004



I am trying to resolve a modem problem that Windows XP is somehow
'blocking' from detecting an ADSL signal.

The line is fine, as i have installed the modem (Speedtouch USB) onto a
laptop and tested the line that way. It worked.

However, when plugging the modem into the PC, the symptoms are as if
there is no ADSL enabled on the line. The modem is constantly waiting
(sync light flashing) for the signal. It's more than not being able to
sync, it doesn't even seem to detect ADSL on the line.

My thoughts are that there is something at 'work' in XP (such as a non-
starting service) which is causing this?

I have done a full AV check using NOD32 which uncovered and removed 7
trojans, and also ran ad-aware to remove a significant amount of
spyware.

I have uninstalled the modem, and re-installed it. Out of desperation, i
installed an old Zoom ADSL modem i have; the same thing occurred. No
apparent DSL signal.

As i said, i know the line is fine, so where the heck can i start
looking in XP? No conflicts in Device manager, no errors reported in
Event Viewer, nothing untoward noted in MSConfig

I'm at a loss, and really don't want to have to do a full re-install of
Windows for the sake of a USB modem!

Posted by ABC on November 29th, 2004



"Tx2" <tx2newscollection@hotmail.com> wrote in message
news:MPG.1c1543054c546faf989d86@news.individual.ne t...
Try reinstalling the drivers on the XP desktop machine. What is the chipset
of the motherboard? Would it be VIA? if so, the via chipset motherboards
sometimes have problems talking to USB devices...solution is to purchase a
PCI USB card (approx £6).

S



Posted by Tx2 on November 29th, 2004


In article <cofc45$nrf$1@nntp0.reith.bbc.co.uk>, info@abc.com, a.k.a ABC
says...


Which drivers? I've already installed the modem drivers.

VIA, and i'm aware of the earlier VIA problems, but of course, in trying
to give as much detail as possible, i forgot to mention that this modem
has been working flawlessly for the last 6 months or more, and simply
stopped working the other day.

Posted by ABC on November 29th, 2004



"Tx2" <tx2newscollection@hotmail.com> wrote in message
news:MPG.1c1546808a85c3d2989d88@news.individual.ne t...
Sorry. Should have read your original post properly regarding modem drivers.

Do any other USB devices (pen drives, scanners etc), work correctly on the
USB ports? You could try removing all the USB items in device manager and
reboot, letting XP rescan the hardware.
Do you have the same problem if you boot up with the modem attached, or boot
up then connect?

S



Posted by Tiscali Tim on November 29th, 2004


In an earlier contribution to this discussion,
Tx2 <tx2newscollection@hotmail.com> wrote:


If the modem works on one PC but not another, it could be a USB power
problem. Some of these devices need more power than some USB ports can
supply. It might be worth connecting it to a separately powered USB hub.
--
Cheers,
Tim
______
Please reply to newsgroup. Reply address is invalid.



Posted by Tx2 on November 29th, 2004


In article <31106hF35hfctU1@uni-berlin.de>, tele@privacy.net, a.k.a
Tiscali Tim says...

It's been working fine for the last 6+ months, and adding an entirely
different modem made no difference, same result, and something that
happened more of less without warning.

Yes, it could be power related, i have a spare hub i can give a try, but
i am very much of the opinion something is 'broken' within Windows.



Posted by Tx2 on November 29th, 2004


In article <cofd2i$o47$1@nntp0.reith.bbc.co.uk>, info@abc.com, a.k.a ABC
says...


Yes, all other USB devices are fine; scanner, printer et al

Same problem if booted then plugged in; same problem if booted then
removed, then plugged in again.

There isn't an easy answer is there ... i'm going to have to resign
myself to a reinstall of Windows?

Posted by Phil Thompson on November 29th, 2004


On Mon, 29 Nov 2004 16:41:47 -0000, Tx2
<tx2newscollection@hotmail.com> wrote:

does the modem concerned run a serivce on XP to do its work for it -
may be worth checking the service list via control panel to see if it
has stopped.

Phil
--
spamcop.net address commissioned 18/06/04
Come on down !

Posted by Tx2 on November 29th, 2004


In article <0pmmq0p2c333s02tcmbsnpnudqoc7fam9s@4ax.com>,
phil.thompson@spamcop.net, a.k.a Phil Thompson says...

My thoughts, but all services, except the Messenger one, are started,
manual, or automatic.

I also checked 'event viewer' but there is nothing that indicates a
problem.

This one has me stumped.

Posted by Phil Thompson on November 29th, 2004


On Mon, 29 Nov 2004 17:42:52 -0000, Tx2
<tx2newscollection@hotmail.com> wrote:

does a different model of USB modem work ?

another reason to use a router :-)
(sorry)

Phil
--
spamcop.net address commissioned 18/06/04
Come on down !

Posted by Tx2 on November 29th, 2004


In article <c9pmq0547kdfqff1bha7l4nvb4qhf5g7dp@4ax.com>,
phil.thompson@spamcop.net, a.k.a Phil Thompson says...

Nope, see my original post. Both modems worked fine on my laptop.
It is definitely something on the PC that is the problem, but what ... ?

Abso-bloody-lutely ... pop round later will you, and we'll go round
there together to make them "understand" this!

[goes off to "press any key to boot from CD ... "]


Posted by Phil Thompson on November 29th, 2004


On Mon, 29 Nov 2004 18:29:10 -0000, Tx2
<tx2newscollection@hotmail.com> wrote:

I missed the Zoom on the desktop. How many USB ports does it have ?
try on the others, they may not all be on the same USB controller

Phil
--
spamcop.net address commissioned 18/06/04
Come on down !

Posted by Paul Busby on November 30th, 2004


Tx2 wrote:
Before you resort to a repair install of XP, you may like to run sfc
/scannow (which will only fix missing or wrong system files but not check
the registry) from the Run box 1st:
http://www.updatexp.com/scannow-sfc.html
if the USB hub doesn't sort it. Does the modem show up correctly under USB
in Device Manager? I've only once had problems with USB: my printer would
intermittently disappear - it ended up being the cable.

Regards



Posted by Tx2 on November 30th, 2004


In article <3131e3F371jf6U1@uni-berlin.de>, me@privacy.net, a.k.a Paul
Busby says...


Good idea... i'll be trying that.

Yes, it does, it also powers on quite happily. It just never finds an
ADSL signal.

Posted by Paul Busby on November 30th, 2004


Tx2 wrote:
Interesting but frustrating for you. A Repair install of XP isn't that
difficult or time consuming as long as one doesn't inadvertently do a clean
install to the same volume by mistake. A long shot would be to try the modem
from another profile with admin rights. I presume that you've gone through
a process of elimination over & above what you have mentioned, ie tried
another USB port (preferably on another controller). I would equally suspect
a hardware issue with this PC.

As an aside, I'm glad I only have to manage my home PC where I would use
Drive Image to take a snapshot then overwrite with an earlier image to test
with; made easier by having data, the entire Docs & Settings folder
structure, Windows settings & program files spread over a further 2 volumes.
I put up with a PCI modem (now almost worthless but fairly low latency) for
a week before biting the bullet by getting a Speedtouch 510 router - goodbye
DUN! Please post back with your eventual resolution.

Regards



Posted by Tx2 on November 30th, 2004


In article <313ne1F371e97U1@uni-berlin.de>, me@privacy.net, a.k.a Paul
Busby says...

[...]

indeed.

Posted by Nick on December 5th, 2004


Tx2 wrote:

Although it'll be of no help, you are not alone.

I've come across a number of cases of problems with 330's & XP, not working
together.
As an ADSL engineer, my problems are the lines, not customers equipment, but
I know that their modems were ok.

Anything in Microsoft knowledge base, Thomson website ?



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