Solved

DSL connection becomes extremely slow when plugged into network switch

Posted on 2007-11-28
2
177 Views
Last Modified: 2010-03-18
I have a problem with our DSL where pings to our ISP DNS return in an acceptable 32ms when I connect my modem/firewall directly to a laptop but when I then plug the ethernet cable into our network switch to enable access by all 40 users the pings start taking up to 900ms with intermittent timeouts.  I'm guessing that the problem is a faulty network card or other piece of network hardware that is interfereing with the line, any suggestions how I can find the problem hardware without having to use a process of elimination and unplug each ethernet cable in the switch individually (I can really do that at the moment anyway as users network connections will be disrupted)?
0
Comment
Question by:spower22
[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
2 Comments
 
LVL 23

Accepted Solution

by:
savone earned 500 total points
ID: 20365492
You need to get a program that will allow you to capture the network traffic.  There are a lot of freeware programs and some you need to purchase.  

http://www.google.com/search?hl=en&q=network+traffic+capture&btnG=Google+Search
0
 
LVL 3

Expert Comment

by:CaffeinatedTech
ID: 20368144
Your switch should have no problem routing the traffic to the right port even with 40 things connected to it.  Unless it is overwhelmed by one or more problem PCs.  Could be P2P software or a virus.

As savone says, if you check out the traffic you should be able to see which machine/s are generating the most traffic.  Find the culprits, get the user to hang tight while you unplug them, let the switch recover (power cycling would be best but would interrupt everyone else) and test again.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Backup UPS - email alert 3 145
Alcatel Lucent OS6450 switch randomly reboots 4 83
looking for a program or router to monitor internet connection 4 125
Network Switches 3 63
Before I go to far, let's explain HA (High Availability) and why you should consider it.  High availability is the mechanism used to provide redundancy to any service at the same site and appears as a single service to the users of that service.  As…
#Citrix #Citrix Netscaler #HTTP Compression #Load Balance

752 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