Solved

DSL connection becomes extremely slow when plugged into network switch

Posted on 2007-11-28
2
175 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
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

Windows Server 2016: All you need to know

Learn about Hyper-V features that increase functionality and usability of Microsoft Windows Server 2016. Also, throughout this eBook, you’ll find some basic PowerShell examples that will help you leverage the scripts in your environments!

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Network Upgrade 4 68
wifi not working 3 63
Cheap Gigabit Switch with trunking support for iSCSI and ethernet connections. 3 77
Read-only SNMP string example ? 7 90
Sometimes you have to pull out old tricks to get a new firewall to work… While we were installing a new Sonicwall at a customers site we found that sites they were able to visit before were not working.  It seemed random and we could not understa…
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…
This Micro Tutorial hows how you can integrate  Mac OSX to a Windows Active Directory Domain. Apple has made it easy to allow users to bind their macs to a windows domain with relative ease. The following video show how to bind OSX Mavericks to …
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

777 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