Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Wireless speed drops to almost halt, Windows 7 64 bit

13 Dec 2009   #1

Windows 7 64bit
Wireless speed drops to almost halt, Windows 7 64 bit

I just built a system with Windows 7 Home Premium 64 bit with a Gigabyte WP30N wireless card.

When connecting to my router (a Netopia 3357), the network speed is initially OK (500kb/s), but then drops straight to a consistant slow (20kb/s). The time it takes for the speed to drop is anything from a few seconds to a few minutes. The slow speed stays.

The odd thing is, if I disconnect and reconnect to my router, the speed is back to OK till the same thing happens and it suddenly drops again. This happen everytime, no matter what I do. Transfering a file with ftp from the command prompt or some web browsing is enough.

At first I thought it was the card, so I removed it and tried two different USB wifi plugs (Sitecom and D-Link). Same thing happens. I have several other computers (running XP) with wireless connections to the same router, that have never had any problems.

So I reinstalled Windows 7, thinking perhaps I messed up something. I did a clean install with no added drivers (Windows 7 installs a driver for the Gigabyte WP30N card automatically), first thing I do is try to transfer some files with ftp, and the speed still drops! Windows 7 Update found a newer driver for the card, but it made no difference. I also tried Gigabyte's own driver (Ralink), also made no difference.

I am totally clueless and this is driving me nuts.

Anyone got any ideas?

My System SpecsSystem Spec
13 Dec 2009   #2

7 x64 Ultimate

Have you tried changing channels on your router? You might be getting signal interference from another appliance.
My System SpecsSystem Spec
13 Dec 2009   #3

Windows 7 64bit

I tried a few other channels now, within the 1-13 range, but it didn't do anything to the problem.
My System SpecsSystem Spec

14 Dec 2009   #4

Windows 7 64bit

I seem to have fixed the problem, atleast I haven't had a speed drop for half an hour now. I disabled the LLTD IO mapper which among other things supposedly determines network bandwidth. Sort of makes sense.
My System SpecsSystem Spec

 Wireless speed drops to almost halt, Windows 7 64 bit

Thread Tools

Similar help and support threads
Thread Forum
connection speed drops after minutes connected
I can connect to the internet and browse but after anywhere from a minute to ten minutes my connection speed drops or i get disconnected all together. I only have this problem at school in my dorm. It works fine on my wifi at home and in other buildings on campus. I know nothing is wrong with my...
Network & Sharing
Upload speed drops to zero
The speed test on my 2 Windows7 machines (PC and netbook) have recently started to show a fine download speed but when measuring upload speed the dial moves up to 400 and then gradually sinks back to zero over the next couple of minutes. It doesn't register any final upload speed. I can upload...
Network & Sharing
HDD Speed Drops?
When ever I'm transferring something or if hdd is being use by another program. I can't do any else.. It drops the Speed bad. I have a Fresh copy of windows 7 Ultimate. I believe AHCI.. I Ideas would help.. My Hdd is a seagate 1tb 7200rpm
Hardware & Devices
Internet speed drops, win 7
I'm now on vacation at my mum, internet connection: 10Mbit/10Mbit, for a couple of months and therefore I have my desktop computer with me. After a couple of minutes downloading at 1,1 MB/s the speed drops below 100 kB/s, and won't return to normal speed until I restart the computer and the same...
Network & Sharing
Windows 7 wireless drops
My wife's Windows XP laptop hard drive finally failed, so we bought her a new HP g60-630us, with a built in wireless adapter. Almost immediately there were issues: 1. Slow wireless network performance: Internet speed sites showed her machine to be 10x slower than my five-year-old HP pavilion...
Network & Sharing

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 18:31.
Twitter Facebook