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: Wifi Network Adapter drops out at random times (Windows 7)

10 Jan 2014   #1
Saginaw

Windows 7 64 bit
 
 
Wifi Network Adapter drops out at random times (Windows 7)

OS: Windows 7
Hardware: Sony VAIO
Powered by: AC
History: The computer is about 2 years old and the symptoms described below started either abruptly or gradually some 2-3 months ago.

Symptoms: The network access icon in the right of my task bar will show 4-5 bars of signal strength. I'll leave the computer for several hours and when I come back, it shows 0 bars with a red x over it. I click it, select troubleshoot and the Windows Network Diagnostics window pops up and says "Problems found"; A network cable is not properly plugged in or may be broken" - Detected; "Problem with wireless adapter or access point" - Fixed, upon which the icon goes back to 4 or 5 bars and I resume my network connectivity. This takes all of one minute or less.

However, if I need to do a lengthy download, this unexpected action will stop the download in the middle of the night.

TROUBLESHOOTING STEPS:
1) I tried a side-by-side comparison with another laptop and the Sony VAIO lost the network connection in the manner described above while the other computer didn't.
2) I went to Manage Wireless Networks, removed all networks (including my home network) and then rebuilt the wireless networks by re-entering my home network. I was then able to access my network. However, the wireless network adapter still shut off in the middle of the night.
3) I went to Power Settings/Change advanced power settings/Advanced settings/Wireless Adapter Settings/Power Saving Mode and observed that "Plugged in" states "Maximum Performance"

Thanks for your help.


My System SpecsSystem Spec
.
10 Jan 2014   #2
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

This might help - the following commands restore Windows IP and Winsock to known good values

Open an Elevated Command Prompt
Tip   Tip
Standard keyboard shortcuts for Copy (Ctrl-C) and Paste (Ctrl-V) shortcuts do not work in Command Prompt.

Enabling the Quick Edit Mode in Command Prompt makes Copy and Paste operations easier.
See step 4 in Command Prompt - Copy to Clipboard to enable it.

Copy in Command Prompt: hightlight the text you want to copy, then press ENTER.
Paste in Command Prompt: right click with your mouse.

In the elevated command Prompt window type the following commands
Alternatively, you can copy the commands, one line at a time and paste it in the Command Prompt Window

ipconfig /release
ipconfig /renew
ipconfig /flushdns
netsh winsock reset all
netsh int ipv4 reset all
netsh int ipv6 reset all

exit
My System SpecsSystem Spec
10 Jan 2014   #3
theveterans

Windows 7 Professional x64 SP1
 
 

Aside from Slartybart's fix, it can also be that there are now more access points in your location than before previously. Try optimizing your WLAN channel by selecting the best channel using inssider. This should lessen the drops out or even eliminate it. If possible, also update or WLAN drivers to ensure best performance.
My System SpecsSystem Spec
.

10 Jan 2014   #4
DMHolt57

 
 

Go in the Device Manager, Network Adapters, right click on the adapter and select properties, Power Management, uncheck the box that says, 'Allow the Computer to turn off this device to save power'.
My System SpecsSystem Spec
10 Jan 2014   #5
Saginaw

Windows 7 64 bit
 
 

Thanks for everyone's help.

I went ahead and performed the tasks described by SlartyBart and DMHolt57. If I still see the problem I'll try the optimization using inssider.

An IT friend of mine suggested I could use a wireless N USB adapter. Anyone have any thoughts about that? Or would that be a last resort if none of the suggestions in here work?
My System SpecsSystem Spec
11 Jan 2014   #6
Ccasarguedas

Windows 7 Ultimate SP1 64 Bits
 
 

As you described above the problem started quite a while ago. Did you ever try a system restore?
My System SpecsSystem Spec
11 Jan 2014   #7
Slartybart

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem
 
 

InSSIDer is a good tool to tell you about channel traffic. I don't know about optimizing with it - but you can decided if channel 1 is overcrowded and make a change to a less crowded channel. Be careful though - channel 3 might look less crowded, but you'll actually overlap more channels - thus more traffic.

I've often thought about getting an N USB adapter mainly becasue my builtin adapater is single band and my router is dual band. I could be getting mush better connection if I found an affordable dual band (2.4 +, 5Ghz) plugin. Of course the latest generation after N is AC, so again price would be a decision factor to move up.

But sure, it might be worth investing in the USB adapter. It's been said that matching the adapter card and router card (both broadcom for example) also improves connectivity. Mine match by chance - can't say that it is true though - I had GREAT connectivity to a Belkin router.
Anyway...

I also thought about your move. On an oft chance, dbl check that the location (Control panel->Region...)of your machine is UK. This shouldn't present any problem machine to router, but further downstream - who knows?

Quote   Quote: Originally Posted by Saginaw View Post
Thanks for everyone's help.

I went ahead and performed the tasks described by SlartyBart and DMHolt57. If I still see the problem I'll try the optimization using inssider.

An IT friend of mine suggested I could use a wireless N USB adapter. Anyone have any thoughts about that? Or would that be a last resort if none of the suggestions in here work?
My System SpecsSystem Spec
11 Jan 2014   #8
Saginaw

Windows 7 64 bit
 
 

The wifi dropped out again. So that rules out the suggested fixes of Slartybart and DMHolt57. So I'll try the suggestions of theveterans and run inssider. I just updated the drivers at Device Manager/Network Adapters. There were three: Realtek, Microsoft and Atheros. Windows was able to find the current drivers for Realtek and Microsoft and updated those. But Atheros. What's that?

Could this potentially be a registry issue?

Someone else here suggested doing a system restore. If I recall, a system restore will only restore to specific dates. Doesn't it also wipe out any new applications installed between then and now? If what Slartybart and DMHolt57 suggested doesn't fix the problem, then why would a system restore likely fix the problem? Could it possibly be a registry issue?
My System SpecsSystem Spec
11 Jan 2014   #9
Saginaw

Windows 7 64 bit
 
 

Quote   Quote: Originally Posted by theveterans View Post
Aside from Slartybart's fix, it can also be that there are now more access points in your location than before previously. Try optimizing your WLAN channel by selecting the best channel using inssider. This should lessen the drops out or even eliminate it. If possible, also update or WLAN drivers to ensure best performance.
I've installed inssider and am running it. I do see my router on some of the channels. But there doesn't seem to be a way of telling what channel I'm on at the moment.

I'm curious if my router will show up in inssider when I experience the dropout. When it drops out, my router doesn't show up in the list if I click on the status bar at the right side of my task bar. But it does show up in Manage Wireless Networks.

Are you suggesting that my router is available on a number of channels, and it doesn't auto shift to another channel when there becomes a problem with one channel? (e.g. it's running on channel 1, and when channel 1 has a problem, it doesn't auto shift to channel 3). Even if this is what it's doing, how could I do a workaround?
My System SpecsSystem Spec
11 Jan 2014   #10
Saginaw

Windows 7 64 bit
 
 

Quote   Quote: Originally Posted by Slartybart View Post
InSSIDer is a good tool to tell you about channel traffic. I don't know about optimizing with it - but you can decided if channel 1 is overcrowded and make a change to a less crowded channel. Be careful though - channel 3 might look less crowded, but you'll actually overlap more channels - thus more traffic.

I've often thought about getting an N USB adapter mainly becasue my builtin adapater is single band and my router is dual band. I could be getting mush better connection if I found an affordable dual band (2.4 +, 5Ghz) plugin. Of course the latest generation after N is AC, so again price would be a decision factor to move up.

But sure, it might be worth investing in the USB adapter. It's been said that matching the adapter card and router card (both broadcom for example) also improves connectivity. Mine match by chance - can't say that it is true though - I had GREAT connectivity to a Belkin router.
Anyway...

I also thought about your move. On an oft chance, dbl check that the location (Control panel->Region...)of your machine is UK. This shouldn't present any problem machine to router, but further downstream - who knows?
Questions about inssider:
1) How can I tell which channel my network is on? (I see it on multiple channels)
2) How can I change from one channel to another?
3) Does the network automatically change from one channel to another when necessary?
4) When I experience a dropout (as described above), will I even see my router on inssider?

So let's say after the dropout, my router still shows up on inssider. I still have to go through the troubleshooting steps and wait about a minute before I can connect to my router.

Now let's say after the dropout, my router does not show up on inssider. I still have to go through the troubleshooting steps and wait about a minute before I can connect to my router.

That being said, just how can inssider be of help in fixing the problem?
My System SpecsSystem Spec
Reply

 Wifi Network Adapter drops out at random times (Windows 7)




Thread Tools Search this Thread
Search this Thread:

Advanced Search




Similar help and support threads
Thread Forum
Wifi adapter could not bind IP protocol stack to network adapter
Hello! I registered to forums to get help to solve wireless adapter issue I am having. I have been looking for help in Lenovo forums and AV provider: problem is still on. Background I changed AV software from Symantec to F-Secure. I uninstalled Symantec software and installed F-Secure...
Hardware & Devices
After Windows wakes, my GbE network adapter drops to 100Mb
I have an integrated Gigabit Ethernet adapter - a Realtek 8168, I think. Sometime (but not always) when Windows wakens from sleep the adapter runs at 100Mb instead of 1Gb. Disabling and re-enabling the adapter puts it back to 1Gb. A reboot also fixes it (of course). Is this typical behavior,...
Network & Sharing
Can't Find Network Wifi Adapter Driver
Taken the IDE hard drive (with Windows 8.1 installed) out of HP Pavilion 15-e72sa laptop and replaced it with a Crucial SSD drive, then installed Windows 7 but cannot get an internet connection. There are yellow warning markers in Device Manager next to the Network Adapter and Ethernet Controller....
Drivers
Notebook drops wifi connection randomly- Ralink network card
Hi, My computer has recently started to drop the WiFi connection, reconnect after a while and at times, not even detect my WiFi connection for a while. Then repeats the process for no apparent reason, I'm not sure when exactly thus problem started as I had been using Ethernet cable up until last...
Hardware & Devices
USB wifi adapter unrecognized on start up at times
Hey All, My usb Wireless Adapter is sometimes not recognized at start up. I’m running a Windows 7 Ultimate 64 bit operating system. My wireless adapter is a Premiertek Powerlink 802.11b/g/n that is mounted outside (Michigan). I am connecting to a neighbors unsecured wifi and at times my adapter...
Network & Sharing
Wifi Network Adapter not detected by Windows & after BSOD
Hi I have Windows 7 Ultimate x64 on a Dell Inspiron Laptop. I also have Ubuntu 11.10 as a dual boot option on this machine. Recently I got a BSOD with the following error - DRIVER POWER STATE FAILURE Since then Windows does not recognize the Wifi network adapter. It is not there in...
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 09:26.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App