Re: Home Throughput Issue

Mon, 05 Dec 2011 08:30:59 -0800

Or maybe the ethernet ports in the router are no good.

You have to check several things:

- The NIC in the laptop/workstation.

- The ethernet ports in the router. You can check itusing a hub/switch.

- Maybe your cables are wrong. Sometimes it happens the wiring of your ethernet cables is not right. I've seen cables that were crimped manually with the wrong settings and that slowed down the network throughput.

Miguel

De: "Ziots, Edward" <ezi...@lifespan.org>
Para: NT System Admin Issues <ntsysadmin@lyris.sunbelt-software.com>
Enviado: lunes 5 de diciembre de 2011 16:53
Asunto: RE: Home Throughput Issue
I would also take a look at the packets when he is connected wirelessly, and wired, and see if you see a higher level of duplicate acks, or fast transmissions, which might spell issues with the physical media ( NIC, Cable, Port on the Wireless router, etc etc)
 
Sincerely,
EZ
 
Edward E. Ziots, CISSP, Security +, Network +
Security Engineer
Lifespan Organization
email:ezi...@lifespan.org
phone:401-639-3505
CISSP_logo
 
From: Glen Johnson [mailto:gjohn...@vhcc.edu]
Sent: Monday, December 05, 2011 10:42 AM
To: NT System Admin Issues
Subject: RE: Home Throughput Issue
 
Sounds like you’ve eliminated most everything except the network interface in this one machine.
Can you add/replace the network card?  You didn’t say if it is a desktop or laptop?
If it is a laptop, I’d test at a different location.  Friend, co-worker or some other place.
If a desktop, slap a cheap nic in and see what happens.
 
From: Roger Wright [mailto:rhw...@gmail.com]
Sent: Monday, December 05, 2011 10:15 AM
To: NT System Admin Issues
Subject: Home Throughput Issue
 
A colleague has a problem that is stumping us:
 
He has broadband at home and when connecting wirelessly to his router his throughput is significantly slower than when using the Ethernet connection.  Speedtest.net says he's getting in excess of 20Mbps down and 5Mbps up via a wireless connection, but with a wired connection to the router his reported speed drops to 5 down/1 up, and the difference is readily apparent when browsing.
 
Connecting with a wired connection from another machine, however, doesn't not report a slower speed and closely matches the wireless speed.
 
He's updated the drivers for the NIC, adjusted the speed and duplex settings, disabled the software firewall, tried other ports on the router, swapped cables, but cannot improved his throughput when using an Ethernet connection from this machine.  It seems odd that his wireless connection would be noticeably faster than his Eethernet connection.
 
Anything else he can check?


Roger Wright
___
I just had my vision checked. My hindsight was 20/20. My foresight is legally blind.
 
 
 
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