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Solved: Intermittent Wireless connection problem with Vista


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maxmillion's Avatar
maxmillion maxmillion is offline
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02-Jul-2012, 07:06 PM #1
Solved: Intermittent Wireless connection problem with Vista
Good evening.
I am hoping someone can advise me on my intermittent network issue.

I have read of a few users with similar issues but I don't know how to resolve mine.
I use Vista Ultimate on a Intel Core 2 pc with 3GB of RAM. I do mostly accounts stuff and general admin with limited use of simple web tools like wordpress etc. I am on the Orange network in the UK.
My pc has been running perfectly for at least 3 years without any significant issues. And I cannot recall loading /installing anything recently that would cause the issue with my wireless access.

I am able to connect to the internet for very short periods before the connection slows to a crawl. My task bar usually shows that the connection is still present as does the Network and Sharing Center but it intermittently disconnects then reconnects.
When I click "diagnose and repair", I sometimes get the following or similar error messages;
"Windows has confirmed that this computer is currently experiencing a network connectivity problem"
Other users on the home network are a laptop running windows 7 and a netbook running linux and occasionally android or iphones. In general these machines are rarely affected though my next error message can be a show stopper which requires a router reset.

Right now I have this error message "Windows cannot find any networks". (I copy and paste this message, then reboot, open my browser and hopefully can post!)

With the recurring issue, resetting the router does not seem to change the status of my connection, though it will help with finding a network. I have contacted the Broadband service provider and they have confirmed there are no issues, and they also provided a new router with which I get the same result.
Oddly, I sometimes find my connection remains active for slightly longer if I first use CCleaner or similar to clear the temporary files and cookies. But not always, so it may be a coincidence.

Below is the result of the "ipconfig /all" command.

I suspect there is some kind of address conflict but I don't know how to identify or rectify the issue.
I have removed and re-seated the wireless card but the issue persists. I also carefully and thoroughly cleaned the computer unit including vents and fan areas in the event there was some dust blockage causing extra strain somewhere.

I have removed and re-added the the network adaptor in Manage Wireless Networks.

I have updated the drivers for the card in Device Manager, as well as removing the device and letting Windows reinstall the device after a computer reboot.

I use McAfee Internet Security version 11 (2012) for my anti-virus and firewall. I have used this product for the past few years and keep it regularly updated.




Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Michael>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Michael-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No

Wireless LAN adapter Wireless Network Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek 8185 Extensible 802.11b/g Wireles
s Device
Physical Address. . . . . . . . . : 00-18-E7-29-70-3F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8168/8111 Family PCI-E Gigabit
Ethernet NIC (NDIS 6.0)
Physical Address. . . . . . . . . : 00-19-66-48-6C-B0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 6TO4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 14:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{9EB1D341-65C2-43FD-857C-2DC203963
5C2}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Michael>


I will appreciate any further suggestions, and thank everyone who has already spent the time reading through the issue. It is long and wordy but hopefully I have provided enough info that it may result in a fix.

Thank you
Michael
maxmillion's Avatar
maxmillion maxmillion is offline
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02-Jul-2012, 07:26 PM #2
I have just re-connected so this is my latest result from ipconfig /all
Microsoft Windows [Version 6.0.6002]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Michael>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Michael-PC
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Broadcast
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : default

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : default
Description . . . . . . . . . . . : Realtek 8185 Extensible 802.11b/g Wireles
s Device
Physical Address. . . . . . . . . : 00-18-E7-29-70-3F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::c47:51e6:187e:9b0c%20(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.2(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : 02 July 2012 23:41:01
Lease Expires . . . . . . . . . . : 04 July 2012 23:49:43
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 570431719
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-13-00-91-1C-00-19-66-48-6C-B0

DNS Servers . . . . . . . . . . . : 192.168.1.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Realtek RTL8168/8111 Family PCI-E Gigabit
Ethernet NIC (NDIS 6.0)
Physical Address. . . . . . . . . : 00-19-66-48-6C-B0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 9:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 02-00-54-55-4E-01
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : 2001:0:5ef5:79fd:10aa:2dcb:3f57:fefd(Pref
erred)
Link-local IPv6 Address . . . . . : fe80::10aa:2dcb:3f57:fefd%14(Preferred)
Default Gateway . . . . . . . . . : ::
NetBIOS over Tcpip. . . . . . . . : Disabled

Tunnel adapter Local Area Connection* 12:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : 6TO4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . : default
Description . . . . . . . . . . . : Microsoft ISATAP Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 14:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{9EB1D341-65C2-43FD-857C-2DC203963
5C2}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Michael>

And I mostly use Firefox version 11 to access the net.

Thanks
TerryNet's Avatar
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02-Jul-2012, 08:44 PM #3
Make sure you have the latest wireless driver from the laptop manufacturer's web site.

Uninstall McAfee and run the McAfee Removal Tool. You can reinstall it after testing.

TCP/IP stack repair options for use with Vista or 7.

Start - All Programs - Accessories and right click on Command Prompt, select "Run as Administrator" to open a command prompt.

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog

Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log

Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log

Reboot the machine.
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03-Jul-2012, 07:06 PM #4
Thank you TerryNet.
That has made a significant difference in the connection speed over the past hour or so. However, now the connection itself seems to drop after a while (twice in the past hour since I performed the stack repair options.)
If I click the Diagnose and Repair option as soon as the yellow icon appears, then the connection seems to hold up but twice it disconnected completely and I had to click on Connect to reconnect.
And would you advise me to reinstall McAfee? I feel naked without firewall, anit-virus and spam protection...

Thanks again.
-M
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03-Jul-2012, 07:33 PM #5
Oops. I may have spoken too quickly. My connection has slowed down again.
In fact, I notice this manifests itself particularly on a Yahoogroup of 14000 members where I am logged in as group owner. I wonder if yahoo adds some sort of cookie that slows my connection down for some reason. I have added the site to my trusted sites in the browser.
But I may have a setting wrong in my firefox
Options > Advanced > Network > Settings > then
Configure how firefox connects to the internet
No Proxy or
Auto-detect Proxy settings for this network (I have this second option selected but have tried the 1st and found no change)

Thanks
TerryNet's Avatar
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04-Jul-2012, 11:03 AM #6
You're choice on McAfee; I just want to get it "cleaned up" in case it had become corrupted.

This is probably a wireless issue, but you may be able to do a little trouble shooting to make sure. Is your computer's internet access good and stable with an ethernet connection? If any other computers are using your network how is their networking by ethernet and/or Wi-Fi?

Please attach a screen shot of the Networks page (don't collapse the Radar, Connection or Signal History) of the Xirrus Wi-Fi Inspector. If you need help with that see TSG Posting a Screenshot. FWIW to take screen shots with Windows 7 or Vista I prefer to use the built-in Snipping Tool.
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04-Jul-2012, 03:14 PM #7
Thank you for your reply again.
All three computers are connected via wi-fi. Certainly the laptop has the best connection as it is physically the nearest to the router. But we use the laptop for streaming movies and most of the time the connection is adequate without noticeable jumps.
Unfortunately ethernet is not an option due to access and space constraints but I may have to review that.
I am considering using a range extender (Edimax) if it can give a boost in speed.
Solved: Intermittent Wireless connection problem with Vista-network-xirrus-screenshot.jpg
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04-Jul-2012, 04:18 PM #8
The signal is strong enough, but it is surprising you can get any service at all fighting three stronger signals on the same channel! Try channel 6.
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16-Jul-2012, 06:01 PM #9
Just wanted to say thanks again for your help. You did help me to check my settings and confirm that it wasn't an issue with mcafee etc.
So I finally bought a new network adaptor card because the cost was neglible and I figured I had nothing to lose. Let me say that I no longer have the issue of slow speeds and intermittent access and my internet connection has been continous and stable for the past 3 days. Access speeds are double what they were and the connection hasn't dropped once that I am aware of. I now suspect that my card was faulty and had probably been like that for some time. Now when I google "realtek 8185 extensible 802.11b/g wireless connection issues" I see that many people have similar issues to what I had - I wonder if it is the realtek card with some inherent fault.
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16-Jul-2012, 07:10 PM #10
You're welcome. When people are in a crowded room (think party) with lots of others talking simultaneously some individuals are better at focusing on one speaker while others just get hopelessly confused. I think that adapters are kinda like that too. So, maybe your old adapter is defective, but maybe it is just not as good as the new one at fighting through all the interference.

Anyhow, glad you found a solution.

You can mark this solved using the button at the upper left of the page or just below the last post.
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