Windows 10 is the most popular Operating System. Nevertheless, users complain about issues with the internet connection and notice an ‘IPv6 Connectivity no network access error’.
What is an IPv6 error?
IPv6 is a version of IP (Internet Protocol) that identifies a device across the internet. Each device has a unique IP address; the IPv6- Internet Protocol version 6 assists different devices in communicating.
Causes of IPv6 network access error
When a device is connected to the internet, the network obtains one or more IP addresses automatically, i.e., IPv4 address and IPv6 address.
Most devices work correctly when either one of the protocols is appropriately configured. However, the networking drivers sometimes fail to work with only one IP connection and declare an error.
Let us find the reasons that trigger this Internet Protocol Version error and look into the adequate solutions in dealing with the error troubling our Windows 10 PC.
Why does it say IPv6 connectivity, no network access
You are witnessing an ‘IPv6 connectivity no network access error’ on your Windows 10 PC, mainly because you are using the wrong ethernet driver or it may be damaged or outdated.
You need to update your ethernet network and card drivers. Mainly these errors occur because:
- Wrong HT mode settings
- Outdated network adapter driver
- Incorrect DNS server address and IP addresses
- Third-party Antivirus software
How to fix IPv6 network access error on Windows 10
Fix #1- Restart the device
The first and foremost fix is to restart the computer; it refreshes the operating system and removes any temporary defective data that may be causing the internet access problem.
Sometimes, just restarting a device can solve many difficult-to-troubleshoot network problems.
Fix#2- Restart the router and the modem
The IP address issue could be with the internet service providers or the router. If you have a single instrument with the modem and the wireless router, turn it off, wait for a few minutes, and restart it.
Fix#3- Temporarily disable security software
If you have an Antivirus installed in your Windows 10, disabling or uninstalling Antivirus software helps.
The third-party software and firewalls could be blocking access to the internet connection; this can be responsible for the appearance of the ‘IPv6 no internet access error’.
Follow the steps to disable the Antivirus software temporarily:
Step#1– Select the Antivirus icon from the taskbar or the desktop, right-click and select Disable Auto-Protect.
Step#2- Select the time frame to temporarily disable the Antivirus software on the next window. Click OK.
Step#3– To check Internet connectivity, reconnect to the internet and log onto the Google Chrome browser to see if the IPv6 connectivity error has been resolved.
Fix#4- Uncheck IPv6 settings
Step#1– Launch the Run terminal by pressing the Windows icon key and the letter R together. Type in ncpa.cpl and click Ok.
Step#2– A network connection window will open with options; select your internet connection, for example, Wi-Fi.
Step#3– The Wi-Fi window will open; click Properties at the bottom of the screen.
Step#4- Once the Wi-Fi properties window opens, uncheck ‘Internet protocol version6 (TCP/IPv6). Click Ok.
Step#5– Restart your PC to save the changes made.
Fix#5- Update network card driver
An outdated or damaged network driver can cause the IPv6 error, you can update your network driver manually via the Device Manager, or you can find the update on the Windows website or with your computer technician.
Let us see how you can update the Network adapter driver software through Device Manager.
Step#1– Tap the Windows key with the letter X and click on Device Manager.
Step#2-From the Device Manager window, locate and expand Network adaptors by double-clicking it.
Step#3– Right-click, select the Network driver you are using, and click Update driver.
Step#4– Select, Search automatically for drivers. This will check the network drivers issue.
Step#5- After updating the driver software, you need to reboot your system to check for any further occurrence of an ‘IPv6 no network access error’.
Fix#6- Disable IP Helper service
Let us disable the IP Helper service to solve the internet access problem. Follow these steps to do so.
Step#1– Tap the Windows key on your keyboard to launch Search. Or select the magnifying glass icon in the Start menu.
Type in Services and press Enter. Click the Windows Services app that is suggested.
Step#2– All the services are listed alphabetically, scroll and locate IP Helper,
Step#3– Double-click to view the IP Helper’s network properties.
Check if the Startup type is Automatic. If so, press Ok, or change it to Automatic and apply.
This way, you have automated the IP Helper service.
Step#4– Now, go back to the IP Helper window and check if the IP Helper status is Running; if not, press start.
Click Apply or OK.
Step#5- After checking the IP Helper service, you need to Restart your PC
Fix #7- Set Network adapter to HT mode
To tackle the problem of IPv6 error, you need to set the network adapter to HT mode on your Windows 10 PC. Then, follow the steps for the IPv6 connectivity issue.
Step#1-Open and run dialog box or press the Windows key along with the letter R to launch the Run terminal. In the dialog box, type in ncpa.cpl Press Ok to open Network Connections Control Panel.
Step#2– Select your active network adapter from the Network connections window. In this case, Wi-Fi.
Step#3– Now, Right-click on the Active Network Adapter (Wi-Fi) to change adapter settings. Select Properties.
Step#4– On the Properties window, select Configure.
Step#5- Click the Advanced tab in the Network adapters window.
Select HT mode from the list under the Properties section and click on Ok.
Step#6– Exit the control panel and Restart your PC.
This should be able to take care of the Internet Protocol version error.
Fix#8- Reset IPv6 and Winsock
Step#1– Run the command prompt by typing cmd in the Windows search box and selecting Run as administrator.
Step#2– Now, you need to type the following in a series, don’t forget to press Enter after each command prompt.
- netsh winsock reset catalog
- netsh int ipv6 reset reset.log
After entering the command prompt, press Enter, reboot your computer, and check for IPv6 ‘no internet access error’.
Fix#9- Run network troubleshooter
Running a network connections troubleshooter is a common and quick fix for problems related to internet connections. Doing so will diagnose and fix the problems automatically.
Step#1– Press the Windows key and the letter I to launch Windows settings, and select Update and Security.
Step#2– In the panel on the left-hand side, selectthe Troubleshoot option, Select the option Internet connections and Run the troubleshooter.
Step#3– Restart the computer to save the changes.
Fix#10- Release and Renew IP configuration
What if your device cannot locate the IP address or if the allocation was terminated? Releasing and renewing the current IP address may solve the issue.
Step#1– Press the Windows key and the letter R to launch the command prompt.
Step#2– Type in ipconfig/release and press Enter. When the command returns, type ipconfig/renew and press Enter.
Step#3– In the end, type Exit and press Enter to close the window.
Step#4– Restart the computer to check the Network connection.
This should help the networking device allocate the IP address automatically.
The IPv6 connectivity no network access error presents itself for different reasons for different users. It may also differ in configuration; some fixes may work for your system and may not help another.
For this reason, we have presented ten solutions that will guide and successfully help you fix IPv6 “No Network Access” Error on Windows 10.