In order lớn connect lớn the internet, your house & your computer need to have a valid IP address. An IP address is essentially a phone number for your computer, & there’s a lot of things that could cause an issue between your computer, your router, your modem, & the world wide web.

When an issue comes up, you’ll see an error in your network settings – Ethernet Doesn’t Have a Valid IP Configuration. Generally, this is caused by the “NIC” – the Network Interface Card. When you fail to lớn get a valid IP address và thus, a response from the internet, you’ll get this error.

It should also be noted that you have a local IP address – an address that only your local (home or office) network recognizes. Think about it that the World Wide Web, or mạng internet – assigns you a street number, but your local network assigns you an apartment number.

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First thing’s first, try rebooting your computer

When it comes lớn fixing tech issues, sometimes some new issues can be fixed by just restarting the whole machine.

Try disabling Fast Startup, too. Sometimes that will cause it – the startup process runs past the required steps khổng lồ get your IP configuration correct. Press WIN + S and enter control panel. Now select Control Panel from the danh sách of results. Go khổng lồ Power Options, and select “Choose what the power nguồn button does”. Select Change settings that are currently unavailable, và turn on off Fast Startup. Then give it a reboot!

Configure your network adapter settings

Normally, your router designates the IP address automatically through “DHCP” technology. However, some routers are configured to lớn work with a static IP address system, where you have lớn assign yourself your own IP address.

Run ncpa.cpl in the Win+R Run program. Right click your current selected network adapter & go khổng lồ properties. Find TCP IPV4 in the current modules và hit properties. If it’s set lớn Obtain an IP address automatically, try setting your own IP address. If you’re on a standard home network, try something like If you’re on a specially configured network, talk to your network admin If it is set khổng lồ something already, try a different address, or try switching it to lớn automatic assignment and hoping that your router’s DHCP server is configured correctly.

Restart Your Router

If you’re having issues with all of your devices getting an mạng internet connection, & your PC is reporting that “ethernet doesn’t have a valid IP configuration” – try just restarting your router. Power nguồn cycle your modem, router, và devices (turn them all off, and then turn them on in order from the wall to your hands (modem, router, device)

Otherwise, you may need khổng lồ use a different router. If connecting to lớn other routers won’t solve the problem, then there is an issue with your network card. Perform a factory restore khổng lồ your network card, và if it does not help, replace it.

Reinstalling your Network Adapter

After completing the steps above, you must uninstall & reinstall your network adapter. Here is how:

xuất hiện the “Run” dialog (Win+R) and enter hdwwiz.cpl in the đầu vào field and click OK. Find your ethernet card in your network adapters, right click it, & uninstall it. Reinstall the drivers from your OEM’s website (you can use a công nghệ bluetooth không dây transfer or USB device lớn get the driver on your computer if you can’t access the internet any other way)

Try Forcing IPv4 by Disabling IPv6

IPv4 addresses follow the following convention: As you can imagine, with as many devices as we have connected to the internet, having millions of different address combinations may not be enough. So, we created IPv6, which allows for billions & billions of different address combinations. However, there are some infrastructural problems with it, especially with older devices. Sometimes, Disabling IPv6 may get you a usable IPv4 address and get you back on the internet.

mở cửa your network & sharing center, và “Change adapter settings”. Select your network connection, & right click it. Select properties. Scroll through the services list, & uncheck “TCP/IPv6”. Restart your computer.

Don’t forget that you’ve disabled this, as it may not fix your problems. If it does, great! If it doesn’t, re-enable it immediately.

Assign a MAC address lớn your network card

A MAC address is a chất lượng device identifier that says “I am this device” lớn the global and local network it is connected to. It’s usually hardcoded lớn the device, but many devices allow you lớn “spoof” a different one, in case of conflict. It’s possible that your ethernet not getting an IP configuration is a symptom of a MAC address conflict.

You’ll need to be an administrator. Mở cửa your command prompt. Enter /IPconfig /all Look for the network adapter & find it’s “Physical Address value” Write it down Log into your network card/router và enter this MAC address into the field (varies by device, use Google to lớn figure out where to bởi this for your specific model of router)

After changing your MAC address, the problem should be completely resolved. Several users reported they fixed this error by combining previous two solutions with this one, so be sure to lớn try them all.

Enable DHCP

We mentioned DHCP earlier: make sure it’s on! Get into your router settings & find where the IP addresses are assigned. Inside that, you should enable “DHCP” instead of Static IP. Note: if you’re on a corporate network, this might break stuff. So be very careful. This is only recommended for trang chủ networks.

Make sure, in your network configuration on your PC or device, you also have the “automatically retrieve IP address” option enabled. Wording might differ based on the device or version.

Once you restart the service, kiểm tra if the problem still appears. If the issue still persists, you might have khổng lồ restart your PC and check if that solves the problem.

Reinstall drivers for your network cards in compatibility mode

If you have an old network card, there’s a possibility it isn’t fully compatible with Windows 10. Find your driver installer, right click it, select Properties, go khổng lồ compatibility, & select “Run in compatibility mode for Windows 8”.

Run the installer and restart your computer. See if that works!

Connect your PC directly khổng lồ your modem

Most home networks are modem -> router -> computer. If you’re having problems, see if connecting directly to lớn the source fixes your internet problems. If it does, you could be having an issue with the router.

Update all your firmware.

If you have a modem, router, or repeaters in the house – find their firmware online, & follow all the provided instructions from the OEM for each device và update their firmware to the newest version. Make sure khổng lồ get a stable build, & not a nightly build. Some providers will provide beta firmware that isn’t fully functional or may have bugs.

Use the Command prompt to lớn flush your DNS

Flushing your DNS và renewing your connection may get you khổng lồ be able to lớn have a valid IP configuration.

open Command Prompt (you may need to be an admin) Type in IPconfig /release IPconfig /flushdns IPconfig /renew Restart your computer.

If this doesn’t solve the issue, no worries – it won’t damage anything either.

Disable your antivirus software

Disabling your antivirus may allow your computer to lớn get access lớn the internet. Sometimes, a bug may happen where your antivirus keeps your computer from being able to assign itself an IP address. Disabling it depends on the antivirus software that you’re running, so try using a search engine to tìm kiếm “Disable” + (name of antivirus) + (operating system)”.

Disable QoS on your router

QoS, or “Quality of Service” is a router setting that helps keep everyone’s mạng internet experience stable on a single network. While it’s unlikely it’ll affect your IP address configuration, it’s possible. Find the QoS settings on your router by using a tìm kiếm engine and disable it, if it is enabled.

Update your BIOS

Updating your BIOS requires you khổng lồ get an installer on your computer, which you can bởi with a USB stick or CD if you have access to lớn the internet on another device. It will be an executable tệp tin that you can launch without internet access, which will update your bios.

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Update Your Networking Drivers

To keep from having mạng internet problems, you can keep your drivers up khổng lồ date with Driver Support.

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