Lost Internet connection.

#1 (**permalink**) 11-27-2009

I have three PCs on a home wireless network. One PC is a desktop using
XP/3 connected to a Linksys wireless router via wire (Ethernet). The
other two are laptops connected via wireless, one is XP/3 and the
other is Vista. My problem concerns the Vista laptop.

When I boot this laptop the Internet is connected. The icon on the
task bar is two small screens with a blue dot. After an indeterminate
time the blue dot disappears and I have lost the 'Net. This is what I
have done.

1). Click on the icon to disconnect from the network then reconnect to
an available network. I always use the home network which has the name
"Jean." This usually works until the next disconnect.

2). Power down the Vista and then reboot. This usually works but not
always.

3). Go to Control Panel/Network and Sharing Center. There the Vista is
shown connected to Jean but Jean is not always connected to the 'Net.
Using "Connect to a Network" some times works.

4). I do the usual things like rebooting the Modem and the router.
This sometimes works,

5). I have not yet tried Control Panel/Internet Options.

6). The other two PCs are not affected.

Any ideas anyone?

Many thanks,

Peter.

#2 (**permalink**) 11-27-2009

Is this a multihomed computer? Post the result of ipconfig/all on Vista may
help.

--
Bob Lin, Microsoft-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on
http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on
http://www.HowToNetworking.com

"PVR" <peterv666@roadrunner.com> wrote in message
news:um5YhG3bKHA.4708@TK2MSFTNGP02.phx.gbl...
>I have three PCs on a home wireless network. One PC is a desktop using XP/3
>connected to a Linksys wireless router via wire (Ethernet). The other two
>are laptops connected via wireless, one is XP/3 and the other is Vista. My
>problem concerns the Vista laptop.
>
> When I boot this laptop the Internet is connected. The icon on the task
> bar is two small screens with a blue dot. After an indeterminate time the
> blue dot disappears and I have lost the 'Net. This is what I have done.
>
> 1). Click on the icon to disconnect from the network then reconnect to an
> available network. I always use the home network which has the name
> "Jean." This usually works until the next disconnect.
>
> 2). Power down the Vista and then reboot. This usually works but not
> always.
>
> 3). Go to Control Panel/Network and Sharing Center. There the Vista is
> shown connected to Jean but Jean is not always connected to the 'Net.
> Using "Connect to a Network" some times works.
>
> 4). I do the usual things like rebooting the Modem and the router. This
> sometimes works,
>
> 5). I have not yet tried Control Panel/Internet Options.
>
> 6). The other two PCs are not affected.
>
> Any ideas anyone?
>
> Many thanks,
>
> Peter.
>

#3 (**permalink**) 12-01-2009

Bob, I have just one home for this computer. It is MSHOME.

Below is the result of ipconfig/all you asked for. Confirming, the
name of my home wireless network is Jean.

Many thanks for your help.

Peter.

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

C:\Users\Peter>ipconfig/all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Peter
Primary Dns Suffix . . . . . . . :
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : neo.rr.com

Wireless LAN adapter Wireless Network Connection:

Connection-specific DNS Suffix . : neo.rr.com
Description . . . . . . . . . . . : Realtek RTL8187B Wireless
802.11b/g 54Mbp
s USB 2.0 Network Adapter
Physical Address. . . . . . . . . : 00-16-44-9C-0D-AA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . :
fe80::f8fe:8623:ce44:b8d%10(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.101(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Tuesday, December 01, 2009
7:24:56 AM
Lease Expires . . . . . . . . . . : Thursday, December 03, 2009
7:58:09 AM
Default Gateway . . . . . . . . . : 192.168.1.1
DHCP Server . . . . . . . . . . . : 192.168.1.1
DHCPv6 IAID . . . . . . . . . . . : 234886724
DHCPv6 Client DUID. . . . . . . . :
00-01-00-01-0E-F0-B3-CA-00-A0-D1-91-1F-95

DNS Servers . . . . . . . . . . . : 209.18.47.61
209.18.47.62
NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Local Area Connection:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Marvell Yukon 88E8039 PCI-E
Fast Ethernet
Controller
Physical Address. . . . . . . . . : 00-A0-D1-9B-BB-19
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 6:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . :
isatap.{3BCB3EAE-FB8F-4141-8934-8A0E11E5B
570}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 7:

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* 10:

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* 13:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #3
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 . . . . . . . . . . . : Microsoft ISATAP Adapter #4
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 15:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft ISATAP Adapter #5
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

Tunnel adapter Local Area Connection* 17:

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

Tunnel adapter Local Area Connection* 20:

Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.neo.rr.com
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes

C:\Users\Peter>
"Bob Lin (MS-MVP)" <noreply@chicagotech.net> wrote in message
news:E3032694-4DC4-4DF4-A789-EF639F57486F@microsoft.com...
> Is this a multihomed computer? Post the result of ipconfig/all on
> Vista may help.
>
> --
> Bob Lin, Microsoft-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on
> http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on
> http://www.HowToNetworking.com
>
>
> "PVR" <peterv666@roadrunner.com> wrote in message
> news:um5YhG3bKHA.4708@TK2MSFTNGP02.phx.gbl...
>>I have three PCs on a home wireless network. One PC is a desktop
>>using XP/3 connected to a Linksys wireless router via wire
>>(Ethernet). The other two are laptops connected via wireless, one is
>>XP/3 and the other is Vista. My problem concerns the Vista laptop.
>>
>> When I boot this laptop the Internet is connected. The icon on the
>> task bar is two small screens with a blue dot. After an
>> indeterminate time the blue dot disappears and I have lost the
>> 'Net. This is what I have done.
>>
>> 1). Click on the icon to disconnect from the network then reconnect
>> to an available network. I always use the home network which has
>> the name "Jean." This usually works until the next disconnect.
>>
>> 2). Power down the Vista and then reboot. This usually works but
>> not always.
>>
>> 3). Go to Control Panel/Network and Sharing Center. There the Vista
>> is shown connected to Jean but Jean is not always connected to the
>> 'Net. Using "Connect to a Network" some times works.
>>
>> 4). I do the usual things like rebooting the Modem and the router.
>> This sometimes works,
>>
>> 5). I have not yet tried Control Panel/Internet Options.
>>
>> 6). The other two PCs are not affected.
>>
>> Any ideas anyone?
>>
>> Many thanks,
>>
>> Peter.
>>
>

#4 (**permalink**) 12-01-2009

Hi
First make sure that your Wireless Router has the most updated firmware
(look at the support site of the device).
Wireless connections are very sensitive to the environment.
If the signal is Not very strong and the environment is noisy with other
signal it often disconnects.
Try to change the transmission channel in the Wireless Router.
Try all the channels and choose the one that gives you the best result
If you are using WEP encryption try to switch to WPA.
Jack (MS, MVP-Networking).

"PVR" <peterv666@roadrunner.com> wrote in message
news:um5YhG3bKHA.4708@TK2MSFTNGP02.phx.gbl...
>I have three PCs on a home wireless network. One PC is a desktop using XP/3
>connected to a Linksys wireless router via wire (Ethernet). The other two
>are laptops connected via wireless, one is XP/3 and the other is Vista. My
>problem concerns the Vista laptop.
>
> When I boot this laptop the Internet is connected. The icon on the task
> bar is two small screens with a blue dot. After an indeterminate time the
> blue dot disappears and I have lost the 'Net. This is what I have done.
>
> 1). Click on the icon to disconnect from the network then reconnect to an
> available network. I always use the home network which has the name
> "Jean." This usually works until the next disconnect.
>
> 2). Power down the Vista and then reboot. This usually works but not
> always.
>
> 3). Go to Control Panel/Network and Sharing Center. There the Vista is
> shown connected to Jean but Jean is not always connected to the 'Net.
> Using "Connect to a Network" some times works.
>
> 4). I do the usual things like rebooting the Modem and the router. This
> sometimes works,
>
> 5). I have not yet tried Control Panel/Internet Options.
>
> 6). The other two PCs are not affected.
>
> Any ideas anyone?
>
> Many thanks,
>
> Peter.
>

Lost Internet connection.

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