Connection drops to local after 1 second

[sparish]

I have posted this on many other sites to no avail hopefully somebody on here can help.

Have looked at hundreds of posts cant find a fix, have done lots of tests so hopefully someone can understand them.

IPv4 connectivity: Local
IPv6 connectivity: Limited

When i diagnose i get 3 solutions, restart adapter, router or get new ip none work. restart router enables me to connect for a second though as stated before. if i diagnose with wireless i get no solutions just unknown reason, but if i just got my wired working id be happy

Windows Vista Home Premium (6.0, Build 6000)
2.4ghz Quadcore
2046GB ram

Full reinstall of windows is a last resort thing, i have ALOT of stuff on this pc 200gigs of it and no vista CD or way of backing it up

More stuff that sounds important, and bad

Ran a test it said:
(i)This adapter is configured to obatain an IP adress automatically. No DHCP server is present on the network. Windows selected an IP adress using Alternative Private IP Adressing.
(x)Ping gateway 0.0.0.0 : Failed
/!\ No DNS server is available for this connection
/!\ No WINS server is available for this connection
(x) Ping Network 0.0.0.0 : Failed

Reset WINSOCK entries to installation defaults: netsh winsock reset catalog
This step went fine.

Reset IPv4 TCP/IP stack to installation defaults. netsh int ipv4 reset reset.log
This step couldnt reset echo request and said access denied, but the rest of it said ok!

Reset IPv6 TCP/IP stack to installation defaults. netsh int ipv6 reset reset.log
None of this step worked because it had the same error as the ipv4 with the access denied but also it didnt do the rest as it said there was no specified settings to reset.

I definately ran it as admin, no idea why it said no permission.

However i reset my computer after doing all of them again and got the ipconfig /all . This is it:

Microsoft Windows [Version 6.0.6000]
Copyright (c) 2006 Microsoft Corporation. All rights reserved.

C:\Users\Shaun>ipconfig /all

Windows IP Configuration

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

Ethernet adapter Local Area Connection:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Intel(R) 82566DC-2 Gigabit Network Connec
tion
Physical Address. . . . . . . . . : 00-1D-09-29-E2-2F
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::a9fd:cbf0:ea1a:f6a0%9(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.246.160(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
DHCPv6 IAID . . . . . . . . . . . : 201334025
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%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* 9:

Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : isatap.{AA20A5A5-F4CA-427F-B72D-30EB0D26…
F60}
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::5efe:169.254.246.160%17(Preferred)

Default Gateway . . . . . . . . . :
DNS Servers . . . . . . . . . . . : fec0:0:0:ffff::1%1
fec0:0:0:ffff::2%1
fec0:0:0:ffff::3%1
NetBIOS over Tcpip. . . . . . . . : Disabled

C:\Users\Shaun>

Any help appreciated.

[wimiadmin]

Where should the NIC be getting the IP from....router or ISP?

Have you tried manually assigning the IP information? If so, what happens.

What about swapping out the CAT 5 cable?

I would also disable IPv6 for now. Just uncheck the box on the network card properties page.

Have you tried installing a different NIC? If so, what were your results.

[systemslave]

Good news Sparish! Your computer is doing just what it should. Tell me about your equipment upstream from your computer. You are not receiving DHCP. That could be for a number of reasons. What type of network equipment do you own? I want to know if you have other computers, a wireless router, networked printer, etc. This will probably be an easy fix. By the way, the IP address you get is exactly what you should get if you are not receiving DHCP.