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ADSL connection drops when another computer is connected to the one running the ADSL modem.

Posted on 2004-04-05
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Last Modified: 2013-11-30
Hi,

I have a machine running XP pro, which connects to the internet via a USB Speedtouch 330 ADSL modem.  

The internet connection is shared using ICS.

I have another machine running Redhat 9, which is connected to the XP box by cross-wire cable, and accesses the internet through ICS.  

It has worked previously for a few months, but all of a sudden, as soon as I plug the network cable into the XP machine, the ADSL connection frequently gets dropped.  By frequently i mean it stays on for a few seconds!!

Ive got Norton Personal Firewall running on the XP machine, but the IP of the Redhat box is in the trusted zone.

If I run just the XP box on the internet without the Redhat machine connected the connection does not drop.  

Ive tried new modem, new filters and still the same.

Can anyone shed anymore light on this??

Thanks in advance.

Jake
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Question by:jakedaly
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6 Comments
 
LVL 27

Expert Comment

by:pseudocyber
ID: 10757127
Do you have to use USB to connect to the modem?  I would recommend using NIC/Ethernet and not USB.
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Author Comment

by:jakedaly
ID: 10757147
Yea unfortunately I only have a USB modem.

Im thinking of getting an ethernet router, with the modem built in, but im really interested as to why its all of a sudden stopped working.  Unless of course its a dodgy ethernet cable or netowrk card??

Cheers

Jake
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LVL 27

Accepted Solution

by:
pseudocyber earned 63 total points
ID: 10757236
Could it be a duplicate IP address?  Only thing I can think of - unless there's some weirdness with the USB connection.
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Assisted Solution

by:micahy2k
micahy2k earned 62 total points
ID: 10765898
I work for an ISP and we use to sell ADSL modem that used USB. They were horrible. We have even stopped selling them and we are trying to get rid of them on ebay for like 5 dollars. The reason being is USB was never really meant for Internet, it was really for like keyboard and mice. We recommend to all of our customers to go to ethernet because it is more stable. It would be to your advantage to purchase a ethernet modem and get a router and run both of them off of it. ICS has never been that good for me. I wouldn't be surprised if that wasn't conflicting with your USB Modem. Plus if my memory serves me correct that speedtouch has had many conflicts with Windows XP. We have a few customers using those modems.

Hope this helps
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