Slow speed on single computer rest of the network is fine

chapachap

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Nov 3, 2012
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Hi there

I have an issue with my desktop computer and internet. So all my other computers and laptops have greats speeds ~40mbps even over WiFi. Except there is a computer a distance away from my modem so I need to hard wire it. That has been done and the speeds were great. Except now the speeds have dropped an settings or anything were changed relating to the internet on my computer or desktop (if any were changed at all). So I thought maybe it's the cable so I got my laptop which was getting ~40mbps over WiFi and when hard wired directly to modem and connected it to the cable going to the desktop in question the speeds it was getting were ~40mbps as well. This makes me think it is something to do with my computer. When I ran network diagnostic test one time I came up with result "Your computer appears to be correctly configured, but the device or resource (DNS server) is not responding" I only got that result twice. Went to this website:
http://answers.microsoft.com/en-us/windows/forum/windows_7-networking/your-computer-appears-to-be-correctly-configured/89f0f675-cb59-494c-ae80-5593d9b29c20
Followed all the steps to no avail. Except when I was restarting my computer when it was just starting up and not all the services had started up it was a solid 38mbps which is what I want. Then it went down hill but within about a minute of starting up I can always get the maximum speed.I also tried to test the speed over wifi to see if it was an ethernet issue but still the same problem.

I own a Telstra Cable Home Network Gateway as you can see here:
http://www.telstra.com.au/connectedhome/enhancements/getwifi/#tab-cable
With cable internet

My desktop is a custom built desktop so I am not able to give you the model number sorry. I can supply the parts if needed but it is capable of the speeds so I strongly believe it's a software issue.

I have approx 15 devices connected to it 5 over Ethernet (included desktop in question)

Thanks in advance
 

chapachap

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Nov 3, 2012
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No I haven't are you referring to hardwired devices or wireless devices or both?
I can do that but I'm not sure it would make a difference because they were always connected before the problem occured.
 

Richard Ricardo

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Oct 6, 2014
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It might be possible that the total bandwidth of the router dropped little by little over a long period of time just due to regular use. Maybe your desktop is at the lowest priority of all your devices to receive signal and that's why its the only one to suffer.
 

chapachap

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Nov 3, 2012
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I am the only device connected via Ethernet to the modem and am connected in port 1 but still bad speeds when I connect another device to this port however good fast speeds just when the computer in question is connected do I have a problem. This leads me to think it is a problem with the computer it's self
 

Richard Ricardo

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Oct 6, 2014
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If you think its an issue with the port or something, try installing an expansion card with an ethernet port and disabling the one already on your computer. Otherwise, try to use a wireless adapter temporarily to see if that solves the issue.
 

chapachap

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Nov 3, 2012
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I have already installed a new card and that didn't help. I made sure the drivers were updated as well still no luck. I have also tried a wireless adapter and still no increase with speed.
 

m34tshield

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Oct 26, 2014
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have you scanned your computer for any malicious programs? adware spyware if it seems like nothings on your comp it might be spyware...though you'd notice things like your account passwords would seem to be changing at random...idk just a thought
 

chapachap

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Nov 3, 2012
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Yea I have thank you with trend micro.

 

chapachap

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Nov 3, 2012
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10,510
I managed to solve the problem by just wiping my computer and reinstall everything again including operating system now it is working fine thank you everyone for your help