?
Solved

Windows 2000 generates excessive traffic when connected to a BT 5861 Router

Posted on 2003-11-05
5
Medium Priority
?
247 Views
Last Modified: 2010-03-17
I support a small chairty that has a network with a diverse range of desktops connected to an NT4 File/Print server and a Mercury Email Server. The desktops are: 95, 98, 2000 and Apple Mac X. We have recently changed our internet connection from ISDN to Broadband via a BT 5861 Router. All worked well under ISDN and all the desktops could access the internet. Our broadband connection is Pipex Managed Service via a BT 5861 Router which is configured to be the DHCP and DNS Server and is NAT compliant. The router is pluged directly into the Switch panel.

All machines can access the internet via this router and via this configuration. However, after a few minutes the Windows 2000 desktops start to generate an excessive amount of traffic on the LAN (about 100 packets a second) and stop all other desktops accessing the internet - but the LAN access appears to be unaffected. The Switch panel shows the lights flashing for the 2000 desktops and the router only - the others flash very slowly (as to be expected). If I take the router off the network then the 2000 ports continue to flash. If I reboot the 2000 desktops (with static IP addresses) and leave the router off the network then all is well. If  I put the router on the network but do not boot the 2000 machines then all is well and everyone else can access the net. Reboot the 2000 desktops and the flashing starts again about 5 minutes (don't have to log the machines on).

Why do the 2000 machines stop the internet connection? Is it the router that is at fault? Should we upgrade to XP (did a one-off test and added an XP desktop onto the network and this worked OK)? We have tried everything over the past 6 weeks without a solution.
0
Comment
Question by:cheeseright
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 9

Expert Comment

by:svenkarlsen
ID: 9687965
Could sound like virus: have you scanned for virus, have you upgraded your anti-virus software ?

0
 
LVL 9

Accepted Solution

by:
svenkarlsen earned 2000 total points
ID: 9687985
Also check for add-ware, - use e.g. Add-Aware:

http://www.lavasoft.de/software/adaware/
0
 

Author Comment

by:cheeseright
ID: 9688270
Ironically, installing the anti virus software was the next item on the list. They have bought the Symantec Antivirus Corporate Edition (8.1) and I have never seen anything so complicated to install. I will try installing this either Thursday or Friday this week and will get back to you. I always assumed that viruses attacked all Windows versions and not generally that selective.

I will download the Add-Ware product and see if that throws up anything interesting.

In the meantime, many thanks for the suggestions.
0
 
LVL 9

Expert Comment

by:svenkarlsen
ID: 9688454
have fun ;-)
0
 

Author Comment

by:cheeseright
ID: 9700553
It worked. Each of the 2K machines had the Welch virus. Removed them and the network traffic stopped immediately. In addition, there was a lot of adware bits and pieces. Removed them all.

Can't thank you enough. The girls in the office are thrilled to bits. You have more than earned your points.
0

Featured Post

Get your Conversational Ransomware Defense e‑book

This e-book gives you an insight into the ransomware threat and reviews the fundamentals of top-notch ransomware preparedness and recovery. To help you protect yourself and your organization. The initial infection may be inevitable, so the best protection is to be fully prepared.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This solves the problem of diagnosing why an internet connection is no longer working. It also helps identify the likely cause of the lost connection if the procedure fails to re-establish your internet connection. It helps to pinpoint the likely co…
Why do some people recommend buying business VoIP from an ISP? What are the benefits to my company? What are the costs?
In this brief tutorial Pawel from AdRem Software explains how you can quickly find out which services are running on your network, or what are the IP addresses of servers responsible for each service. Software used is freeware NetCrunch Tools (https…
Visualize your data even better in Access queries. Given a date and a value, this lesson shows how to compare that value with the previous value, calculate the difference, and display a circle if the value is the same, an up triangle if it increased…

800 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question