No Internet Access for IPv6 on LAN and WiFi

[T_Yamamoto]

So recently, I don't know exactly what happened but my internet has seemed slow.

I check my network settings and it shows that there is no internet connection via IPv6 on both my LAN and WiFi.

I use a WiFi extender (which features an ethernet port) so I'm connected to it via WiFI as well as the ethernet port.

Here is what I see. I've tried resetting TCP /IP stack, disable/reenabled IPv6, etc.

 

[master_shake_]

try unplugging and plugging it back in?

 

[VirtualLarry]

I use a WiFi extender (which features an ethernet port) so I'm connected to it via WiFI as well as the ethernet port.

Uhh, why both?

Both connections show "Internet access", but how are you going to diagnose speed issues unless you test one at a time?

And the IPv6 thing is likely not even an issue, unless you were POSITIVE that you used to have IPv6 connectivity.

But unless you remember otherwise, I'm going to go out on a limb and suggest that you probably don't have IPv6 connectivity from your provider. (Comcast, in most regions, does provide IPv6, modem and router permitting. FIOS does not - yet.)

Edit: You will get effectively half of the speed, from using WiFi to the extender, as you would just plugging into it with ethernet.

 

[MtnMan]

Is your ISP providing IPv6? If not, you are not going to have IPv6 internet access.

Is your modem even IPv6 capable?
Is your router IPv6 capable, and is it configured for IPv6

 

[Puffnstuff]

I'm having the very same issue with windows 10 and IPV6 even though my isp and router both show that ipv6 is on and a dchp address has been assigned to my router. I used to get a ipv6 resource assignment on my pc's now I don't. I've tried clearing the settings and resetting them but it didn't work.

 

[razel]

You can verify if ipv6 works by visiting http://ipv6.google.com. Resetting the settings is just one step. Ideally you'll want to start by testing if your modem even supports IPV6 at all. Most do. Test it by connecting direct via Ethernet. If you have a cable modem, you will need to bounce it as it marries itself to whatever it's attached to on bootup. Then attach your router and test via Ethernet. Chances are your router supports it but it's often off or configured differently.

That's when your headache starts. You'll want native, stateless IPV6 support and NONE of the tunneling ones. Stateful is fine if you cannot get stateless to work. Even after you have verified that your router supports IPV6 getting windows to recognize it's IPV6 world isn't immediate. Native and stateless IPV6 is not always immediate. In my experience, unchecking IPV6 support in the network settings, clicking ok. Making sure IPV6 is off and IPV4 is working and THEN re-checking IPV6 support was the most reliable way to get it to find itself in the IPV6 stateless world. Once it's there though, your router will thank you. It will do less work.

Best of luck.