Desktop Internet Speeds Slower Than Other Devices

onewingedangel0920

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Feb 5, 2012
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So I'm having some trouble with my internet speed in terms of its relative speed compared to other devices I have connected to my network. I'm on a 10 Mbps connection (megabits not bytes) with a download speed that's usually around 2-2.5 MB/s through the gaming service Steam or any other download service.

However, I noticed today that I'm no longer receiving those speeds on my desktop when on my laptop I'm still getting the same speed. On my desktop I'm hovering anywhere between 2-4 Mbps or 150-350 kb/s on Steam. I did a scan on my desktop using MalwareBytes and deleted some suspicious programs and I've also called my ISP who couldn't help me with anything. I also pulled up the Resource Monitor and saw no programs hogging my bandwidth. So I did a clean install of Windows 7 thinking there was some deeply entrenched worm that I couldn't get out.

Upon reinstalling everything I discovered that I still have the same problem. I'm still seeing slower speeds and my laptop is doing just fine.

My internet setup is like this. I have a Motorola modem connected to my cable connection, this is then run to my Belkin N+ router using an ethernet cable. My Belkin N+ router is then connected to my desktop through another ethernet cable.

Edit: So I've noticed that some kind of throttling seems to be taking place. I know it isn't my ISP because I've already asked them. But when using Steam as a sort of download manager and tracker to see how my bandwidth is doing I begin going up rapidly to around 1 MB/s and then am brought down where it fluctuates wildly below 750 kb/s. I've downloaded TCPOptimizer and messed with some settings that have allowed me to get the full amount of bandwidth. I think things are good now.
 

Urumiko

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Yeah MTU or TCP windowing issues perhaps.. though thats unlikely...
Are you sure you are not getting errors on your pc connection? it is wired or wifi?
 

onewingedangel0920

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My desktop is wired through the router but the rest of my devices are wireless. They are also now experiencing a problem. I'll see some times where I'm getting most of my bandwidth with no problem but at other times I'll be back to about 300-500 kb/s.
 

onewingedangel0920

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I actually had a normal speed for a little while and then it's dropped down again. No errors detected using the normal Windows Troubleshooter but I'm not sure how reliable that is. I've got my Speed & Duplex set to 100 Mbps Full Duplex.
 

onewingedangel0920

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Here's something interesting. I changed my Speed & Duplex back to Auto Negotiation, then after a couple of hours put it back to 100 Mbps Full Duplex and my speed shot up to around 750 kb/s, then dropped to 500, and is now back to 120-150.
 

onewingedangel0920

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It fluctuates all the time. This morning I was getting my full 1.8 MB/s but now I'm down to 350 KB/s.

In terms of mbps speed test will give me 15 Mbps when I'm getting a good speed but it usually fluctuates between 2-6 Mbps when I'm having trouble.