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Windows 7: Fresh Win7, no net, lcl area connect doesn't have valid ip config

02 Oct 2014   #1

Windows 7 Home Premium 64 bit
Fresh Win7, no net, lcl area connect doesn't have valid ip config

Hoping I can get some help, this one is a head-scratcher.

I have a PC that was having an unrelated problem and decided the simplest fix would be to reformat the HD then reinstall win 7. I've done this before without any problems; however, this time the PC will not connect to the home network and is giving me the message "local area connection doesn't have a valid ip configuration". I made no hardware changes, just a win 7 reinstall. I have several other computers on the network connected to the internet. I have reset the modem, and have bypassed the switch so the computer is connected directly to the modem. I have installed network adapter drivers and there is no exclamation point next to the device in the device manager.

I tried to do an ipconfig /renew and got this:

C:\Windows\system32>ipconfig /renew

Windows IP Configuration

An error occurred while renewing interface Local Area Connection : unable to con
tact your DHCP server. Request has timed out.

Basic info:
Modem: Ubee
Switch: D-link
No antivirus (fresh win install)

Thanks in advance for any help,


C:\Windows\system32>ipconfig /all

Windows IP Configuration

Host Name . . . . . . . . . . . . : Traci-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 . . . . . . . . . . . : Generic Marvell Yukon 88E8057 PCI-E Gigab
it Ethernet Controller
Physical Address. . . . . . . . . : 00-1F-BC-08-CD-4C
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Autoconfiguration IPv4 Address. . :
Subnet Mask . . . . . . . . . . . :
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Enabled

Tunnel adapter isatap.{800DE59A-FF50-446F-9219-E3497BF2A719}:

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


My System SpecsSystem Spec
02 Oct 2014   #2

Windows 7 Home Premium 64 bit

I will leave this here in case anybody else has this problem. I reinstalled win7 again with no fix. I tried doing the winsh reset for ipv4 and ipv6 and a 3rd entity I don't recall which did not work.

The solution? I have a spare NIC and I threw that into the machine and moved the ethernet cable from the on-board to the add-on. Unfortunately my office is dark and I put the NIC into an incompatible slot and the computer would not boot. I removed the NIC, rebooted, and noted that I had an X instead of a ! by my network icon. I thought to myself "why not" and I plugged the ethernet cable back into the original motherboard NIC and the effing thing started working. I know this shouldn't have done anything but whatever... So bottom line: try and fry your computer, and then plug the cord back in after a restart seems to be the technical tour de force required to solve this problem.
My System SpecsSystem Spec

 Fresh Win7, no net, lcl area connect doesn't have valid ip config

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