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Slow internet only on one computer?

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Old 08-08-2010, 08:30 AM   #1
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Hey, I'm new to this forum and I've only got one post so sorry if it seems like I'm leeching but I really need some help with this :/

My situation:
I just recently upgraded from 1500k internet to 8000k internet.

I have two laptops which connect to the router wirelessly and one PC (the one I am on currently) that connects to the router via ethernet cable.

The two laptops get a 5000k speed approximately when tested using speedtest.net. The PC gets exactly a 1500k speed on every test. I've tried using different ethernet cables, different ports and all of that and nothing seems to change the speed. I've even plugged in one of those wireless USB adapters and connected to the router wirelessly and the speed remains on 1500k.

I've pretty much determined that it isn't a hardware issue because two other computers are capable of achieving full speeds - or close and the main PC which has the problem receives the same speeds via wireless adapter and Ethernet cable. So I thought it might be a software issue and ran the computer in Safe Mode with Networking and performed the speed test and the results were the same.

Could if be some kind of setting on windows that is limiting the speed to 1500k?

I've checked the half duplex/full duplex setting and it's set to Auto Negotiate. I've also briefly checked through gpedit.msc and couldn't find anything that was limiting the internet to 1500k.

I recently had a software installed that is called "Adventnet Manageengine Network Analyzer" that I didn't use. I've completely removed it (I think).

Does anyone have any idea what I can do to locate where the problem is coming from or even how to fix it?

Any help or even suggestions will be appreciated.

Thanks.

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Old 08-08-2010, 12:00 PM   #2
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Just curious, did you try connecting one of the wireless machine to the wired connection? It appears it may be the router's wired ports, not your computer.

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Old 08-08-2010, 01:33 PM   #3
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If you have tried a wireless and wired approach from the same machine then I would be tempted to say it was a local problem. I would check to see if there is anything in your routers settings restricting that particular machines bandwidth (unlikely it is unless you have played with the security).
For this I would briefly turn off the routers firewall and run the speed test again.
I'm not sure where to go after that sorry.
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Old 08-12-2010, 12:28 PM   #4
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Quote:
Originally Posted by johnwill View Post
Just curious, did you try connecting one of the wireless machine to the wired connection? It appears it may be the router's wired ports, not your computer.
Yes I did and both of the laptops had the proper speed with the Ethernet cable.
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Old 08-12-2010, 12:51 PM   #5
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With a wired connection, boot in Safe Mode with Networking and see if the speed is normal or still slow.

Also, are file transfers between machines also painfully slow?
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Old 08-12-2010, 01:47 PM   #6
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Quote:
Originally Posted by johnwill View Post
With a wired connection, boot in Safe Mode with Networking and see if the speed is normal or still slow.

Also, are file transfers between machines also painfully slow?
Ive booted in safe mode with networking and the connection is still slow
I've never transfered files between the machines and I don't know how to
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Old 08-12-2010, 03:56 PM   #7
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I wonder if there's something going on with your network adapter, that seems to be the one thing we haven't addressed... Did you test the cable and port on the router you're using with one of the laptops to insure it's not that?
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Old 08-14-2010, 12:45 AM   #8
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Quote:
Originally Posted by johnwill View Post
I wonder if there's something going on with your network adapter, that seems to be the one thing we haven't addressed... Did you test the cable and port on the router you're using with one of the laptops to insure it's not that?
Yes I have and the laptops received the proper speed. I don't think it's the actual hardware because when I plug in a wireless USB adaptor onto the pc and connect wirelessy it's still receiving slow speeds.
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Old 08-14-2010, 09:18 AM   #9
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Well, if Safe Mode doesn't solve it, and you're sure it's not hardware, you're kinda' at the "install fresh" state I would imagine.
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Old 08-16-2010, 12:14 AM   #10
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I'm going to try to run Windows XP portable on a USB stick and see if I still get the slow speeds
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Old 08-16-2010, 01:22 AM   #11
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I couldn't get the portable XP to work but I did run BackTrack 3 (linux) off of a Live CD and I managed to run the speed test. The speed's I get when running the BackTrack 3 operating system are the proper speeds that I should get.

If the internet speeds are only slow on Windows XP operating system (safe mode and non safemode) wouldn't it be some kind of setting that is doing it?

Any ideas other than reformat/fresh install?
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Old 08-16-2010, 07:17 AM   #12
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Well, the only thing that comes to mind is either the network drivers or something running on the machine that's slowing things down. The fact that it does the same thing in Safe Mode leaves me puzzled as to what to look at next.

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