Fix Windows 8.1 Ethernet doesn’t have a valid IP configuration

After my tablet is upgraded to Windows 8.1 Pro from 8, the Internet connection hardly run for about three minutes and then stop working.
I make the troubleshooting through Networking and sharing Center and it shows the message “Ethernet doesn’t have a valid ip configuration” and “Error 651: The modem(pr other connecting device) has reported an error.” How to reoslve the problem?

Many people have got the “Ethernet doesn’t have a valid ip configuration” error and the device can’t connect to Internet after updating to Windows 8.1 or 8. You could try the following solutions to fix the issues:
* The simplest method. Completely shut down the machine to clean something in the BIOS or memory.
1. First shut down the system and switch off the power at the wall.
For PC, pull the power cord out, as well as pull the internal battery out for tablets or laptops.
2. Wait for about five minutes, plug power cord or battery back, and power on your device to boot up again.
* Mess around with drivers and operate the Windows IP Configuration.
1. Make sure you have installed the latest version of Intel or Realtek lan network driver. You can download it from others PC and transfer it.
2. Unplug the LAN cable or disconnect wireless connection.
3. Right click the network icon from taskbar, select “Open network and sharing center”, click “Change adapter settings”, and the network adapter.
4. Select properties, uncheck “Internet Protocol Version 6 (TCP/IPv6)”, select “Internet Protocol Version 4 (TCP/IPv4)”
5. Click Properties button, select “Use the following IP address:” and manually fill in your ip address, subnet mask(, and default gateway (your router ip address)
6. Select “Use the following DNS server addresses:” > Prefer Alternate DNS server, input your router IP in Default Gateway, and then OK button.


One thought on “Fix Windows 8.1 Ethernet doesn’t have a valid IP configuration

  1. I’m experiencing this problem repeatedly since I have the Windows 8.1 Pro OS. Well, it is true that I didn’t try any other OS on my new PC but I had so many PCs during my life, I don’t see the cause of the problem. All the drivers should be okay. And this problem only appears at certain ocassions, typically when I switch on my PC or if I wake it from sleep mode. The latter is very annoying since I usually use sleep mode when I have something opened in my browser and I need to continue it later. Restarts solve the problem but than I loose all my stuff… Also it is very uncomfortable to restart my PC many times because of this issue that seems to be a bug in the OS.

    Please help.

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