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Windows 7: Ridiculously Slow/Flaky Wireless

15 Sep 2009   #11
zigzag3143

Win 8 Release candidate 8400
 
 

Quote   Quote: Originally Posted by Poblasai View Post
I'm having similar problems.

I have a Dell Latitude 1520 with a Dell 1505 wireless-N mini card.

I'm getting 1mbps or less (more often than not, less) with an 802.11n connection that is no more than 15ft from the access point.

-Have reset the router (many times)
-Windows firewall is off
-Powersaving setting set to max wireless (i.e. no powersaving in regards to the wireless)
-Have tried Windows provided wireless drivers (even the ones updated via Windows update)
-Have tried Dell's Vista drivers
-Card operates at 50+mbps with XP
-Wired connection works fine

This seems to be a recent problem (1 or 2 months). I've been using Win7 since sometime is very early spring and while I never actually checked the speed my wireless card was getting, I also never noticed it being a problem until recently.

Anyone have any idea?

side note: the really sad part here is that the card works a LOT faster in Linux and there isn't even a Linux drivers for the card.
could you tell us what cable modem, router, and ISp

Ken


My System SpecsSystem Spec
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16 Sep 2009   #12
zaxis

Windows 7 ultimate X64
 
 

I also had a problem with slow internet through wireless here is how I resolved it !

Slow Network File Copy issues in Windows 7 caused by Remote Differential Compression | Windows Reference

Hope this helps! -

Although the link is in reference to file copy issues it resolved my slow wireless connection to the interweb
My System SpecsSystem Spec
16 Sep 2009   #13
logicearth

Windows 10 Pro (x64)
 
 

Quote   Quote: Originally Posted by zaxis View Post
I also had a problem with slow internet through wireless here is how I resolved it !

Slow Network File Copy issues in Windows 7 caused by Remote Differential Compression | Windows Reference

Hope this helps! -

Although the link is in reference to file copy issues it resolved my slow wireless connection to the interweb
Remote Differential Compression Myth: The Storage Team at Microsoft - File Cabinet Blog : Debunking Myths about Remote Differential Compression and System Performance
My System SpecsSystem Spec
.

16 Sep 2009   #14
Poblasai

Windows 7
 
 

Quote:
I also had a problem with slow internet through wireless here is how I resolved it !

Slow Network File Copy issues in Windows 7 caused by Remote Differential Compression | Windows Reference

Hope this helps! -

Although the link is in reference to file copy issues it resolved my slow wireless connection to the interweb
Even if it is a myth, I see no harm in trying this particular method. Thanks.

Quote:
could you tell us what cable modem, router, and ISp

Ken
Router is a Linksys WRT330N. While am I getting slow Internet connection, Modem and ISP are irrelevant as the problem occurs with file transfers between my other Win7 desktop. Thanks for the reply.
My System SpecsSystem Spec
17 Sep 2009   #15
zaxis

Windows 7 ultimate X64
 
 

I am using a Linsys WRT56G router and a Dlink card, I am still having some issues as it happens, but it appears to be on port 80 only. I think it maybe my virus/network checker. Looks like I am going to try a fresh install to see if that cures the problem.
My System SpecsSystem Spec
21 Oct 2009   #16
Juozas

Windows 7
 
 

Hi, I have the same problem as well with Windows 7 on my Asus R2E.
The strange thing is, that after installing windows speed was OK, but on the other day it decreased drastically. I'm not sure what happened, maybe some update has been installed, or something.

P.s. my router is D-link DIR-655
My System SpecsSystem Spec
21 Oct 2009   #17
Juozas

Windows 7
 
 

And after dissabling "Remote Differential Compression" it's back on full speed
My System SpecsSystem Spec
21 Oct 2009   #18
logicearth

Windows 10 Pro (x64)
 
 

Quote   Quote: Originally Posted by Juozas View Post
And after dissabling "Remote Differential Compression" it's back on full speed
That would be an incorrect assessment.
My System SpecsSystem Spec
22 Oct 2009   #19
Juozas

Windows 7
 
 

Quote   Quote: Originally Posted by logicearth View Post
Quote   Quote: Originally Posted by Juozas View Post
And after dissabling "Remote Differential Compression" it's back on full speed
That would be an incorrect assessment.
Today after restart, it's back on very slow speed (like 8 Kb/s), and after reenabling RDC, speed goes to normal, but only until next restart...
So yes, it does not matter if RDC is on, or off.

Same effect does disconnecting and reconnecting back to wireless network.
My System SpecsSystem Spec
16 Sep 2012   #20
reibee

Windows 7 Professional 64bit
 
 

I have encountered the exact issue. Running Windows 7, getting full bars and am within ten feet of the router, speeds at 54mbps, but randomly drop down to 1mbps. No rhyme or reason to when it happens or how long it stays this way. I have seen other Windows 7 users describing the same symptoms, but have found no effective fixes.
My System SpecsSystem Spec
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 Ridiculously Slow/Flaky Wireless




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