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Blazing Internet Slow Lan, Hardwired One Machine Only

Last response: in Networking
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February 5, 2014 9:13:04 AM

Hello folks, I am having a problem with my primary machine, it's an AMD 8 Core, With 16GB RAM, Windows 7, 64bit, ASRock 70 Extreme 4 Motherboard, Realtek PCIe GBE Family Controller NiC. The issue is that my internet speed is blazing, but somehow my lan connections are buggered and take up to 30 seconds just to see a directory on the NAS. I'm afraid some registry changes may have been made to the computer because I used System Mechanic to "optimize internet connection" as it was giving me an error for the then current settings. All of the other machines on the network are perfectly fine, all similar setups and instantaneous responses from the NAS. I've tried googling the preferred settings for my NIC and none of the "most efficient" seem to be helping the problem. It's important to note that my PC wasn't always like this, just one day in the recent past the problem manifested. I'm really stumped, is there any tool out there to maximize LAN settings or does anyone have the time and patience to work with me to get it back to normal? Thanks so much.
February 5, 2014 10:13:52 PM

That's weird. First I would double check your internet speed. Do a speed test (speedtest.net) on your pc and then from a different device as well (cell phone, laptop, whatever connected to your network not a speedtest of the cell 4g network speed). If your pc is substantially lower there could be a lot of things wrong specifically with the pc. You could have some malware or maybe be seeding something unbeknownst to you that is eating up all your bandwidth. Run a malware scan (malwarebytes is a free one) and a virus scan as well. If none of that solves your problem, at least it will narrow things down a little bit. Try that out and report back.
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February 6, 2014 11:36:53 AM

rcfant89 said:
That's weird. First I would double check your internet speed. Do a speed test (speedtest.net) on your pc and then from a different device as well (cell phone, laptop, whatever connected to your network not a speedtest of the cell 4g network speed). If your pc is substantially lower there could be a lot of things wrong specifically with the pc. You could have some malware or maybe be seeding something unbeknownst to you that is eating up all your bandwidth. Run a malware scan (malwarebytes is a free one) and a virus scan as well. If none of that solves your problem, at least it will narrow things down a little bit. Try that out and report back.


Thank you very much for taking the time to work with me. I ran the speed test and I'm getting 84.32 Mbps down and 39.31 Mbps up, which is right on the money as I pay for 85/35. Ran speed test on my housemate's machine who sits right next to me and is also running Win 7 64bit, with 16GB of memory and his results were 83.25 down and 33.09 up. So I'm actually outperforming his machine by a small margin. I happen to own the full version Malwarebytes Pro, it was a Christmas gift; it runs twice a day, I ran it now and it found no objects, I also ran Webroot, my antivirus software and it found nothing. I don't understand what you meant by I could be "seeding" something so I'd like to explore that if we can. Thank you again.
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February 6, 2014 8:26:55 PM

By "seeding something" I mean if you download torrents like movies, CDs, etc, sometimes they are set to automatically "seed" which means host from your machine for other users to download directly from you. It kills your bandwidth and could give you really poor internet performance but you ran the test and it looks exceptionally fast so I don't think that's the problem. Can you further explain your LAN setup please, especially your NAS. I can't think of anything right now but the more information you post makes it more likely someone will be able to think of something to fix the issue.
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February 7, 2014 2:15:45 PM

Sure, I don't know much on the technical side, but my home network is just a windows 7 workgroup consisting of all the connected computers, phones, laptops and printers that appear under "networking" - no special setup or anything odd. The NAS is a plug and play fool proof NAS made by ZyXel, the NSA320, it just shows up as a machine with a 1GB network speed and drives (shares) on it that you can map to your PC as a drive letter through explorer. It does require authentication which goes against a users table on the NAS through its web interface with permissions and such. So everyone can see the NAS is available, but without a username and password, they can't access it. It's a very, very basic network, we don't even have windows home network or homegroup whatever it's called, setup because none of us could figure it out. Would posting my NIC settings be a help or just a waste of time since the internet works just fine?
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February 7, 2014 2:42:21 PM

I found the culprit. I remembered that as administrator of the NAS, I still had access, although nothing mapped to, a failed share from an external drive that died. I thought perhaps there was some overhead from this on my NAS to sort through the bad share information before I could see the remaining good shares, so I disconnected all my NAS shares, connected them as another user and the speed was fine. So I went back into the NAS as admin, deleted the bad share completely, disconnected the failed USB drive that the share was on, and my Admin account works instantaneously now as well. I had simply forgotten that share/drive had failed since no one but myself had access to it and forgot to disconnect it. Thank you for your help, your ideas got my ideas flowing.
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February 9, 2014 6:29:39 PM

Glad you got it solved, sorry we couldn't pinpoint the issue for you but since you figured it out yourself, you probably learned it better anyway. Good work.
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