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Internet speeds keep changing

Tags:
  • Download
  • Speed
  • Computers
  • Networking
  • Internet
Last response: in Networking
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August 10, 2013 10:53:09 AM

I got fibre optic a couple of weeks ago and the speeds were awesome, from a 3mb/s download speed to a 35mb/s. I was running with these speeds for quite some time without any problems, until it randomly started dropping (down to around 4-7mb/s). My first thought was that it was a problem with the internet, however my mums computer has been running at a 30-35mb/s download speed this whole time. Re-plugging my ethernet cable usually worked, but not always. Here I thought there were 3 main things that could've caused it:

A virus
I re-installed Windows 7 on my computer 2 days ago, however the lag still persists. So this cannot be the issue.

Bad ethernet cable
I bought a new ethernet cable at the same time fibre was installed, and I have also tried my mums PC upstairs using my cable and she was fine all day.

Faulty network card
As I said, I swapped both mine and my mums computer around for a day. Both computers ran at full speed without any problems, no drops, nothing.

So right now I'm not sure what is it. I've tried many different things and I'm back in my original place with the lags happening again. Re-plugging the cable isn't helping me anymore though and there's nothing I can do. My ethernet drivers are up to date as well. Here's 2 speedtests I did today, one before the drop and one after:

http://www.speedtest.net/my-result/2892283902
http://www.speedtest.net/my-result/2892809830

Does anyone know what could be wrong or what I can do to test/fix it? Thanks.

More about : internet speeds changing

August 10, 2013 11:44:16 AM

did you try to plug your ethernet cable in another slot on the router ?
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August 10, 2013 11:57:16 AM

Yup, I've tried all the different LAN ports and none of them make a difference.
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August 10, 2013 12:09:32 PM

did you try to reset the router ? and do the test again .
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August 10, 2013 12:13:40 PM

I've restarted the router multiple times and even pressed the little reset button. None of them helped me unfortunately. My mums PC still runs fine though.
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August 10, 2013 12:24:41 PM

your network card is internal could you try a pci one for test and if this work good ,you have 2 choice keep it this way or rma motherboard for defective network chipset .
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August 10, 2013 12:33:17 PM

I don't have another network card, I wanted to find out what was wrong so I could buy whatever I needed (whether that was a new cable, network card or anything else).
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August 10, 2013 12:40:12 PM

do you have a usb wi-fi dongle you could use to connect to the router or a friend could lend you one .
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August 10, 2013 12:52:28 PM

Bypass your router and test speeds on modem? You did that already right?
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August 10, 2013 1:05:39 PM

@scout_03 Here's a test I did with the wireless dongle http://www.speedtest.net/my-result/2893026397. However, I had a 28mb/s download jut before with my normal cable (it sorted itself out again for a while).

@GrannySmith1 I'm not sure how to do that, can you explain?
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August 10, 2013 2:40:12 PM

@GrannySmith1 I tested the speeds through the modem and it was 28mb/s, when I put it back in the router it was 9mb/s. What does that mean the problem is?
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August 10, 2013 6:14:40 PM

you have less on wireless that ok it is either your network chipset or the router keep it on the wirelees dongle for a while and if the speed stay the same your network need to be check on your computer also plug your mom compu to the net on the slot you where using in the router,you could also get a network card to replace the internal one .
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September 10, 2013 2:53:56 PM

Dannyb77 said:
@GrannySmith1 I tested the speeds through the modem and it was 28mb/s, when I put it back in the router it was 9mb/s. What does that mean the problem is?


Sorry for long reply haven't looked at my account in ages!

So, if speeds are fine through your modem but through your router it's slow, its most likely an issue with your router.

I had this problem not too long ago except it was only for my upload speed. What I did was restart my router and it worked fine. Let me know if it works for you.
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