Thanks for the follow up. I’m going to show you several troubleshooting methods to get the job done. I've seen this at another client and was only able to permanently stop this behavior by putting in a third-party router and getting the comcast router put in passthrough mode. That IP scope had a dual assignment on the network. So I went into the computer room and connected a laptop up directly to our DPC3939B. One of them is a traceroute which can run IPv6 or IPv4. Many of the Windows 10 users have complained about being unable to access the internet. Tracing route to a1526.dscg.akamai.net [184.26.136.64]over a maximum of 30 hops: 1 7 ms 10 ms 7 ms 10.192.10.12 12 ms 10 ms 20 ms 96.120.21.1293 17 ms 17 ms 17 ms Te0-2-0-14-sur04.southside.fl.jacksvil.comcast.net [68.86.171.249]4 * * * Request timed out.5 * * * Request timed out.6 * * * Request timed out.7 * * * Request timed out.8 * * * Request timed out. IPv4 only sites are failing. Ipv4 No Internet access but Ipv6 Connectivity is OK I bought a Laptop with IE10 an Windows 8 installed. Rebooting the comcast router seems to stop it for a while. However, the IPv6 connectivity as well is not left behind with errors. I had this same problem, i solved it by calling tech support and having them assign me a new static IP. group A VPN will. When I am connected directly I can browse some websites but most don't work. Open the Control Panel , and then change the View by to Category and click Network and Internet . So it turns out you are our hero! Basic checks. Might not be an option for everyone, but it works. ComCast hasn't been able to help us yet and who knows when they will show up to help. That’s all, keep visiting WindowsBoy for more. I said yeah and then went to demostrate and to my suprise it worked. Before you proceed with troubleshooting, you should make sure you’ve already done the following and checked the IPv6 connectivity again. Do not panic when you see this type of problem with the IPv6 Connectivity. 10. "Use default gateway on network access | Tom's should be using DHCP, require an IP address or a to After you disable with IPv4 DHCP and an IPv6 No Network the TCP/ IPv4 advanced Hardware Open VPN connectivity. Here are the traceroutes: Using IPv6: tracert -6 www.comcast.net First I demotrated with my laptop connected to the CG that a trace to www.comcast.net via IPv6 worked perfect and that IPv4 failed. The problem often occurs when current networking equipment is not capable of communicating through Internet Protocol version 6 (IPv6) - only some Internet Service Providers (ISPs) allow it, or your router might be configured to work with Internet Protocol version 4 (IPv4) rather than IPv6. Our service stopped working yesterday at about 3:30pm EDT. When the IPv6 Connectivity states “No internet access”, it’s possible the DHCP server can be detected but the system cannot assign the no-link-local address. This is a big deal for us. But when you are unable to connect with the internet, it starts to feel like there’s no point in owning an electronic device. But perhaps you can check the iPv4 pool as you did with the above poster. Let’s see what works for you to solve the issue. Then I showed him that I could do a sucsesful trace to 8.8.8.8 via the CG web interface. Save my name, email, and website in this browser for the next time I comment. Many of the Windows 10 users have complained about being unable to access the internet. No change. The problem began to spread to all of our wired devices. IPv6 is the next generation of routing and offers many improvements over IPv4, including a virtually unlimited number of addresses. Step 1. Then they said, "well have you tired a trace to 8.8.8.8 with your laptop". Fix: Miracast Not Supported by Graphics Drivers, Fix: Bluetooth Not Working After Windows 10 Update, Fix “There was a problem starting StartupCheckLibrary.dll”. 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