Vista Ultimate SP1 looses network connection

[Dabbler]

At least once a day my I notice all my network applications like Skype, GTalk
etc are trying to login again and I can't reach the internet with IE. When I
look at Network Sharing Center instead of the usual Home (private) network I
now have that and another Unknown Network, or only the Unknown Network shown.
If I reboot I get just the Home network showing and everything works again.
Sometimes I can disable the local area network adapter and re-enable it and
the connection stays up for a while. Other times trying to disable lan
adapter gives perpetual hourglass. Can anyone shed some light on this? I was
hoping not to have to reboot so often.

Dell XPS420 E8500 3.16Ghz
Vista Ultimate SP1
3GB DDR2, 500GB SATA, Intel 82566DCV-2 Gigabit NIC

 

[Robert L. \(MS-MVP\)]

Posting the result of ipconfig /all here may help. Or check this post.

Vista: local access and unknown network
http://www.chicagotech.net/netforums/viewtopic.php?p=6721#6721

--
Bob Lin, MS-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

 

[toni321]

At least once a day my I notice all my network applications like Skype, GTalk
etc are trying to login again and I can't reach the internet with IE. When I
look at Network Sharing Center instead of the usual Home (private) network I
now have that and another Unknown Network, or only the Unknown Network shown.
If I reboot I get just the Home network showing and everything works again.
Sometimes I can disable the local area network adapter and re-enable it and
the connection stays up for a while. Other times trying to disable lan
adapter gives perpetual hourglass. Can anyone shed some light on this? I was
hoping not to have to reboot so often.

Dell XPS420 E8500 3.16Ghz
Vista Ultimate SP1
3GB DDR2, 500GB SATA, Intel 82566DCV-2 Gigabit NIC

Just wondering but does your system go into Sleep mode when you leave
it? I have this problem with four of the dells running Vista Business
and all we ( the dell techs and I) came up with was to go into power
management and turn off sleep.
Toni

 

[Dabbler]

Yes, it happens when Vista comes out of sleep mode. As far as I can make out
a second network is created "Unknonw Network" which has IP 0.0.0.0 Also the
default gateway appears to have been changed to 0.0.0.0. I sometimes can
disable and enable the network adapter and it reconnects, other times I have
to reboot.

I'm going to try using static IP instead of DCHP and see fit that cures it.
Not a good fix on a LAN but I'm working out of a home office.

Here's my config.sys taken when my system has been disconnected:


Windows IP Configuration

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

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . : neo.rr.com
Description . . . . . . . . . . . : Intel(R) 82566DC-2 Gigabit Network
Connection
Physical Address. . . . . . . . . : 00-1D-09-31-87-DA
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::fd42:8863:ec42:84d8%9(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.0.199(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Friday, June 06, 2008 8:33:56 AM
Lease Expires . . . . . . . . . . : Saturday, June 07, 2008 8:34:00 AM
Default Gateway . . . . . . . . . : 0.0.0.0
192.168.0.1
DHCP Server . . . . . . . . . . . : 192.168.0.1
DNS Servers . . . . . . . . . . . : 192.168.0.1
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter Local Area Connection* 6:

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* 7:

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