How to Fix an IPv6 No Network Access Error
                     How to Fix an IPv6 No Network Access Error
When a device connects to the internet, it obtains one or more addresses on 
the network. Often, your device gets both an IPv4 address and an IPv6 
address. IPv6 is a newer network standard, intended to enable a much 
larger network of connected devices than the older, more widely-used IPv4 
protocol. (See IPv4 and IPv6: What They Are and Why They’re 
Important to learn more about each of these network address systems.) 
When properly configured, most devices will work well when a network 
connection is made with at least one of these two protocols.
Try the following troubleshooting steps to fix your IPv6 connection issue.
1. Restart your device When you restart a device, you also restart the device’s network           
connections. Many difficult-to-troubleshoot network problems can be fixed by turning a device off, 
and then back on. During the start up process, most devices will automatically rejoin previously 
connected wired or wireless networks.
2. Update your device’s operating system. See detailed instructions for how to update 
recent Windows, Android, iOS, or macOS devices. Operating system updates often include 
fixes for unusual network connectivity problems.
3. On Windows devices, check for network device driver updates. 
Computer manufacturers and network device makers often provide 
network device driver updates for equipment that works with 
Windows. Check the manufacturer’s support website to learn of any 
available device driver updates. In some cases, you may need to 
install more than one device driver update.
4. On Windows 10 devices, run the Windows Troubleshooter 
intended to help fix internet connections. From the Start Menu 
choose Settings > Update & security > Troubleshoot.
Next, select Internet Connections, then select Run the 
troubleshooter. Follow the prompts on the screen and 
allow the Troubleshooter to attempt to fix any issues 
identified.
5. On Windows devices, disable and then 
enable each of the network connections on 
your system. In some cases, this may help 
you identify that there’s a particular 
problem with a device or connection.
6. On Windows devices, reset IPv6 settings from the command 
prompt. To do this, type cmd in the Windows system search 
box. Right-click on the Command Prompt desktop app 
displayed, and choose Run as administrator.
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Type netsh winsock reset catalog and then press 
the Enter key.
Then type netsh int ipv6 reset reset.log and then press 
the Enter key.
After you do this, restart your system.
7. On mobile devices that run iOS or Android, reset network 
settings on your device. This clears settings for Wi-Fi networks and 
resets cellular network settings to system defaults. See How to 
Reset Network Settings on Your iPhone for iOS devices. For 
Google Pixel devices and other Android 9.0 Pie systems, go 
to Settings > System > Reset options > Reset Wi-Fi, mobile & 
Bluetooth. This should resolve any issues that resulted from manual 
misconfiguration of an IPv6 network connection.
8. On any device, disable any active virtual private network (VPN) connection. See detailed 
instructions for how to manage VPN connections on Android, iOS, Windows 10, Windows 7 or 
8, Windows XP, or macOS devices.
Many VPN programs and connections disable IPv6 connections in order to help secure your network connection. 
They do this to manage and limit the exposure of your device’s network information. So, an active VPN connection 
might also automatically disable any IPv6 network connectivity. After you disable your VPN, your device should 
connect to the internet normally. Many VPN programs and connections disable IPv6 connections in order to help 
secure your network connection. They do this to manage and limit the exposure of your device’s network 
information. So, an active VPN connection might also automatically disable any IPv6 network connectivity. After 
you disable your VPN, your device should connect to the internet normally.
If you discover that this resolves the issue, you might check with your VPN provider to see if they offer 
alternative settings with IPv6 support. Many VPN services have devised methods to allow IPv6 connection, 
while also obscuring actual device IPv6 data. However, not all VPN services support IPv6 connections.
9. Disable the firewall on Windows or macOS devices. An 
incorrectly configured firewall may block some or all IPv6 network 
connections. If IPv6 network connections work when the firewall is 
disabled, review your firewall settings or restore the firewall 
defaults.
10. On Windows devices, disable the IP Helper service, which 
attempts to manage some aspects of IPv6 connectivity. To do this, 
press Windows key+R, then type services.msc in the displayed 
run box, and select OK.
This opens a long list of Windows 
system services. Scroll through the list 
and locate the service named IP Helper, 
then right-click on the service name, and 
choose Properties.
In the drop-down list next to “Startup type:” choose Disabled, 
then select OK.
Restart your system, then check to see if your IPv6 connection 
now works as expected.
11. If you are at home and attempting to connect to your home network, restart your router and modem. 
A problem with either your internet service provider or router might result in a lack of connection to an 
IPv6 address. If you have two network devices, restart your modem first, then wait a minute or two and 
restart your router. (Increasingly, internet service providers give customers a single device that contains 
both a modem and wireless router. If that’s what you have, turning that device off, waiting a minute, 
then turning it back on is all that you need to do.)
12. Upgrade your router’s firmware. Router makers tend to release periodic updates to improve the security 
and performance of devices, including how devices handle IPv6 connections. Improvements often fix 
problems with connections between the router and your internet service provider, as well as connections 
between the router and local devices on your network. Some older routers, for example, added or improved 
IPv6 connection support in later firmware updates. However, some older routers lack IPv6 support entirely.
13. Access your home router as an administrator to enable your router’s IPv6 configuration. Explore 
the controls to make sure that IPv6 connections are enabled. Turn the setting to Auto Detect or Auto-
Config, if either of these options are available. Otherwise, make sure the service is turned on.
Once enabled, you may need to restart your router for an IPv6 connection to be established. It may 
take a bit for the IPv6 connection to be active and available, so wait a few minutes longer after you 
start your router to test the connection.
14. Adjust IPv6 tunnel settings while accessing your home router as an administrator. The last step to 
take is to adjust how your home router and network handles IPv6 addresses. Since IPv6 is designed 
for every device to obtain a directly-addressable address, the default settings for modern, up-to-date 
routers that connect to modern, up-to-date internet service providers will work well.
You might experiment with other IPv6 settings on your router if you experience problems. First, select 
“6to4 tunnel” in your router’s setting, in order to allow IPv6 and IPv4 traffic and devices to work 
together. Another option to try is disabling shared IPv6 connections. For example, some people report 
that disabling “Share IPv6 connection” on an Apple Airport router resolves IPv6 connection issues for 
local devices.
That’s it! Your IPv6 network access issues should now be resolved. If it isn’t, contact your device 
manufacturer for additional support.
Thanks for Wathing 
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