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: WLAN Internet connection issues, timeouts (WinXP works, Win7 not)

25 Jan 2012   #1

Windows 7 Home Premium 64bit
WLAN Internet connection issues, timeouts (WinXP works, Win7 not)

On my old netbook with Windows XP 32bit the WLAN works perfect. But I encounter connection issues on my new notebook with Windows 7 64bit. I'm connected to a router.

  • playing games works pretty fine, despite some heavy lags now and then
  • messenger (MSN, ICQ, IRC) work fine and stay connected
  • FTP fileupload with FileZilla works only in active mode, not passive mode,
    uploading files in passive mode result in endless timeouts,
    since active mode opens ports on my computer, is it a port-based issue?
  • wireless internet on other machine with Windows XP works
  • I experience the problem the most when browsing the internet in a webbrowser, if a connection issue happens then no websites will load anymore
    most of all I got problems connecting to DeviantART (graphic websites with lots of images) the website will load but rarely the thumbnails of the images, the progressbar just loads and loads
  • EventViewer on Windows often gives messages about timeouts during DNS lookup
  • when the internet connection in the webbrowser drops I can still ping google in command line, using the websitename takes ~20ms, using the IP takes ~40ms, I can also still chat in my messengers
Trials (nothing solved the problem):
  • disabled IPv6
  • running commands:
    netsh interface tcp set global rss=disabled
    netsh interface tcp set global autotuninglevel=disabled
    netsh int ip set global taskoffload=disabled
  • set router encryption from WPA2 to WPA
  • tried an older driver for my WLAN adapter
  • tried different firewalls, also disabled firewall and antivirus completly
  • installed all possible windows updates, also silverlight
  • disabled the wireless adapter of the notebook and plugged in an external WLAN adapter dongle
I looked around for solutions of this problem and found alot of people talking about similar issues (change from WinXP to Win7, suddenly having connection issues on Win7 while WinXP works fine), but I did not found THE solution yet and I would wonder if there is any, cause then it would have been already included in a windows update I guess.

It really seems to be a Windows 7 problem, I really hope somebody can help me. This heavy problem can drive someone back to Windows XP and waiting for the next major release. Despite this problem Windows 7 works perfectly, I love it and would not like it to go back to Windows XP just to be able to browse the internet properly.

Thanks for any answers and links.

My System SpecsSystem Spec

25 Jan 2012   #2

Microsoft Windows 8.1 Pro 64-bit

Hello real, welcome to Sevenforums

Wireless works fine on my computer and most others. So I would guess the problem would lie just with your particular set up. What I mean by that is, it could be anything from your particular hardware (incompatible, for example) to programs installed on your computer causing interferance (viruses could do this as well). And pretty soon here, you're going to be needing that IPv6...

What antivirus do you use, and have you updated it/scanned your computer? Look up this and see if there is anything you have not yet done: Internet Troubleshooting Guide

Is your adapter compatible with Win 7? Have you tried another wireless adapter on the Win 7 computer to see if it works or not?
My System SpecsSystem Spec
27 Jan 2012   #3

Windows 7 Home Premium 64bit

I use the free Avira Antivirus and free ZoneAlarm Firewall.
I completed the Immunization of Webbrowsers by using Spybot Search and Destroy.
Windows Firewall is turned off completely.

Scan of C-Drive using Avira Antivirus Scan : nothing found
Scan using Spybot Search and Destroy: nothing found

Internet Troubleshooting Guide for high-speed/broadband-cable connection:
IP adress valid,
ping <Default Gateway> successful,
ping Google successful

Starting Windows 7 in safe mode with networking, no firewall or antivirus, notebook is placed next to router:
same behaviour as with normal windows startup, internet connection is dropping/timing out from time to time,
FTP upload in passive mode not possible

Using an external WLAN USB dongle and disabling the internal WLAN adapter:
same, problem remains

First eventviewer message I got after booting Windows in normal mode after save mode was:
Timeout (3000ms) while trying to connect to "Atheros Bt&Wlan Coex Agent" service
(Co-existence Coordinator Service between 11a/b/g/n Wireless LAN and Bluetooth.)
But enabling the service did not changed anything, since it is something about the communiation between WLAN and Bluetooth it seems to be unimortant for my problem, but I wanted to mention it.

I can connect to the internet, but the connection is often dropping for several seconds/minutes which effects less my chat and messengers, but most of all the webbrowsing. The problem is not that I cant connect, the problem is that my connection keeps timing out. Best example again is the FTP fileupload. The webbrowsing often may work, but the FTP upload in passive mode keeps timing out. Maybe part of the problem is the size of the requests im sending to the net, since I can always ping websites. Even when my webbrowser is timing out on google, I can ping it successful as much as I want. And the network icon of windows never says "not connected", I'm always connected.

My Mom and Dad are using Windows 7 too in our homenetwork, but as far as I know they never experienced problems like me yet.
My System SpecsSystem Spec

27 Jan 2012   #4

Microsoft Windows 8.1 Pro 64-bit

Hey Real,

run this: SFC /SCANNOW Command - System File Checker

What browser do you use? have you tried another browser just to troubleshoot?

Download the new version of your wireless network adapter software and keep it on the side for now. Use Revo uninstaller free (here) to remove all wireless network devices you might ever have had on your computer including the new one, completely. Then install the driver.

Let me know what wireless adapter you have installed so I can double check it.
My System SpecsSystem Spec
06 Feb 2012   #5

Windows 7 Home Premium 64bit

System File Checker: No integrity violations

WLAN Adapter: Atheros AR9002WB-1NG Wireless Network Adapter

Browser: I previously used the Firefox 10 Portable Edition and other portable Browsers. But since your last post I'm using the installed version of Firefox and it seems that fixed my issue. I guess the portable version of Firefox caused the timeouts and lags. Since I'm using the installed version it is running without problems. Maybe someone else who is using the Firefox Portable want to comment on this thread. I also want to mention I experienced similar lags with the portable Firefox from time to time on Windows XP.

For me this issue seems solved, thank you for your time DustSailor!
My System SpecsSystem Spec

 WLAN Internet connection issues, timeouts (WinXP works, Win7 not)

Thread Tools

Similar help and support threads
Thread Forum
Win7 to WinXP LAN Internet connection wireless sharing
Hello all... I have a laptop running win7 and a netbook running winXP. The laptop is ethernet connected to the internet. I have created an ad-hoc network using the laptops wireless card and then joined that using the netbook wireless. Is there a way to give internet access to the netbook...
Network & Sharing
Win7 no internet connection at startup but works after pinging gateway
OK so i upgraded some of our PCs from a old machines running XP to a new DELL running Win7 Professional 32 Bit - I am on a wired LAN with a server and separate gateway/firewall PC When I start my PC everything is just fine - connects to the network etc and I start receiving my e-mails from...
Network & Sharing
how to share HSDPA internet connection win7 to winxp
hi this is the first time im in sevenfoum i want to share HSDP internet connection win7 to winxp i tried some solutions but it dsnt work please help me
Network & Sharing
Win 7 WLAN, but no internet connection
I am using Asus WL520GU with Teddy Bear Tomato Firmware. My main rig using Win 7 Ultimate 64bit is wired to this router. Two other PC using XP are wirelessly connected to this router without problem. I have disabled security on my router, but set up Mac restriction to ensure only authorized...
Network & Sharing
Losing internet connection and/or WLAN
In the last month or so, I've begun having intermittent loss of connection within my home WLAN. Wireless is HP Laptop w/ 7 HP and wired is Dell desktop w/7 HP. Even with both machines awake, they can't "see" each other. This network has been up for years, and has been fine on 7 since my upgrade...
Network & Sharing
Microphone not working (works on winXP not win7)
Hey, I'm trying to get my microphone to work, it works perfectly with Windows XP x32 but with Windows 7 x64 it doesn't work, the audio aspect of it works perfectly and I can hear movies/music/games etc but the microphone isn't working, when I record all I can here is static. I've tried both...
Sound & Audio

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 03:18.

Twitter Facebook Google+

Windows 7 Forums

Seven Forums Android App Seven Forums IOS App