"Ethernet" doesn't have a valid IP configuration

Solution 1:

It seems you are still having trouble pinpointing the problem. In your situation, I would boot a Knoppix disc and carefully monitor the kernel log (dmesg) for any errors about "eth0". At best, this would lead to you finding out that the current ethernet adapter has malfunctioned and that there is nothing wrong with your windows.

If the network card is fine, on the other hand, then there could be a problem with either your DHCP client or the statically configured IP.

A possible error is that your network interface is receiving the same IP as another device in your network, causing it to be invalid. Notably though, previous windows would detect such errors and report them specifically.

Another possible error is that some other utility configures some part of the network (or all) information including broadcast, address, gateway, netmask, incorrectly or "forgots" to update it after you switch locations. Although somewhat far-fetched, I'm guessing something along the lines of a "mobile modem" could do it.

Try configuring your address manually. - Figure out correct information (gateway, netmask) from a functioning OS - Duplicate that information in the "ipv4 properties" of your "local area connection" - select a sensible address (10 higher or lower than what was found)

Solution 2:

Try the following:

1. Press the + X button.
2. Click Command Prompt (Admin).
3. Click Yes if User Account Control window popups.
4. Type netsh winsock reset catalog and press the Enter key. (ensure you have the spaces)
5. Type netsh int ip reset reset.log and press the Enter key. (ensure you have the spaces)
6. Restart the computer.

Login and enjoy your surfing.

Maha Pappan

Solution 3:

I had the same problem, solved it by restarting the "Wired AutoConfig" service. It may be relevant that on my machine, this service is set to Automatic.

1. Press +x button.
2. Select "Computer Management" from the pop-up menu.
3. From the "Computer Management" window, select "Services and Applications".
4. From here, Select "Services".
5. In the list of Services, select "Wired AutoConfig". Stop the service, then start it again.