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I was able to get fairly good speeds and steady video/gaming. However, after I upgraded to Windows 7 64-bit, I am now unable to get more than 5% traffic, no matter how hard I push the system. I am on a wireless network (no hardlines available), using a D-Link WDA-2320 with manufacturer's drivers.

Video is extremely slow (cache pausing a stream takes almost 30min to get 5min from youtube) games are out of the question (autobounce for bad connection) and even firefox is slow. There is also an issue with port forwarding that I posted separately which may be related.

Nothing about the internet set up changed between before and after this problem started besides the change in OS. Does anyone have any idea what could be causing this and how to fix it?

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2 Answers 2

Reset to default
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Apparently Windows 7 was throttling the wireless! Windows couldn't tell what the proper speed was and took over, dumping me in dial-up land.

This CMD command lets you override windows overriding you: netsh int tcp set global autotuninglevel=disabled. I now get normal speeds.

Port forwarding issue appears to be unrelated.

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  • this took 4 hours online with MSFT tech support
    – Elliot
    Commented Dec 19, 2009 at 17:51
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Windows 7 comes with some rubbish stock drivers - especially ones for Wired or Wireless cards based on a Realtek Chip. You have not mentioned what chipset/card you have.

I recommend that you try to find out not what the manufacturer of the card is (Acer, or other etc.) but find out who makes the chip on board (Intel, Realtek or Via amongst many others) and go to their website and try to download and use the latest version as this should improve things a lot.... especially if you knew it worked on a previous operating system on the same hardware.

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  • I am using A D-Link WDA-2320 with manufacturer's drivers (technically Vista).
    – Elliot
    Commented Dec 18, 2009 at 23:42
  • "Windows 7 comes with some rubbish stock drivers" ... care to elaborate on this? got some documentation?
    – Molly7244
    Commented Dec 18, 2009 at 23:43
  • No documentation - but I have several Realtek Wireless USB and desktop PCI cards here, when I plug them in to any Vista or 7 machine, it cannot connect to ANY AES based WPA2 network and anything else only gets around 5Mb/s, the moment you upgrade the drivers, it works and gives full speed... so, no documentation, just experience.
    – William Hilsum
    Commented Dec 18, 2009 at 23:49
  • It has an Atheros chipset. I am having trouble finding an updated driver from them (or any, for that matter).
    – Elliot
    Commented Dec 18, 2009 at 23:50
  • What Wil is describing sounds very similar to my problem.
    – Elliot
    Commented Dec 18, 2009 at 23:51

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