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Slow network traffic in one laptop of the network

There is only one laptop in the network that has time-out issues; it has 1GB Ethernet cable, Wireless N, it is connected to a SQL database, but I have several computers connected to the same database and server and doesn't reports the same problem. Is there a way to diagnostic the traffic/speed for that computer to know where the problem is? is it possible if the Ethernet fails will be a slow connection?

How can I fix this?? \o/
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Daniel Flores Olmos
Asked:
Daniel Flores Olmos
1 Solution
 
zunder1990Commented:
To test the network speed copy a large file like dvd .iso. I would turn wifi off and focus on the wired part.
Something to try:
1. check network drives for the laptop
2. try a USB nic to see if on board is bad
3. check cable
4. check the switch (you may have a bad port and a bad config)

If all that fails to fix it come back for more help.
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remmett70Commented:
Easiest way to start is swapping.

Move laptop and connect to differenct cable and run.  If problem stays with computer, then you need to dig into drivers, and network hardware of the laptop.

If the problem does not follow then the issue is with the cabling or switch port.
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ohmyselfCommented:
First attempting a ping to the local computers would detect a network packet loss.

You can also attempt a line quality test through DSL Reports at: http://www.dslreports.com/linequality

I know this is on a local network so testing to make sure that the NIC is working, updating the driver could help.

Just a few questions below:

Does it have a difference in speed when you plug in directly on wire vs a wireless connection?
What application are you using to connect to the SQL Server?
Any operating system differences? Such as Windows XP vs. Windows 7?
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Daniel Flores OlmosInfrastructure and Support EngineerAuthor Commented:
ohmyself:

1.- Does it have a difference in speed when you plug in directly on wire vs a wireless connection?
R: same

2.- What application are you using to connect to the SQL Server?
R: VB based

3.- Any operating system differences? Such as Windows XP vs. Windows 7?
R: The laptop with the issue has W7, but the most of my network computers has W7 and they are running fine
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ohmyselfCommented:
Alright, great. I will vouch for the other two to see if you can attempt to update the NIC drivers.

Did the issue change whenever the network medium was changed?
Can you update the NIC's on your laptop, or do you have the latest versions?
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Daniel Flores OlmosInfrastructure and Support EngineerAuthor Commented:
ohmyself:

1.- Did the issue change whenever the network medium was changed?
R: In facts, the issue was reported when user was using WiFi (because he doesn't wants to use ethernet... you know... bad attitude) but he asked me to acquire a docking station so, now the laptop is docked and the ethernet plugged all the time and the issue remains.

2.- Can you update the NIC's on your laptop, or do you have the latest versions?
R: I haven't updated the NIC drivers because the users is not precisely cooperative but I will
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ohmyselfCommented:
Great, just report back and see what happens. I am not homing in on that to fix it but it will knock out a range of related issues to attempt that. Thank you!

Also if you could, turn off in the settings of the NIC(s) to make sure that they do not have the "power off when not in use to save energy" that sometimes can cause issues.
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Daniel Flores OlmosInfrastructure and Support EngineerAuthor Commented:
When I came to the user's office and try to make all the tests you guys suggest me; I noticed that the Ethernet wire was unplugged, so I confirm the users apathy to cooperate and stay connected wired so, I first copied a 2.3GB ISO file from the server -wired- and the transfer rate was 25.7MB/second (the user watch this) and then I make the same copy but wireless and the transfer rate goes down to 868KB/second, 29 times slower! (user watchs this again) so, this was the only way to convince user to stay connected, at least, while using our VB/SQL App. Thanks!!!
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