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Windows 7: IPv6 Problems with Home Network

09 Feb 2014   #1

Windows 7 Home Premium 32bit
IPv6 Problems with Home Network

Hello my friends, first time posting here at sevenforums, but a long time resident in the field, particularly networking.

I apologize if the title of this thread is cryptic, but as I have less than zero experience working with ipv6, I was completely unsure of what to call it - but here goes.

The Deets: Two machines at my ex-girlfriend's parents house - Toshiba Satellite Laptop running 7 Home Premium, with realtek network adapter - 32bit os. The other is a dell all-in-one touchscreen thing running 8. I apologize that I don't have more accurate and detailed specs - but I am not on site at the moment.

The Network: Hughesnet Gen4 on the ISP end, with a Cisco/Linksys black trapezoid (wrg54 maybe) for wifi.

I am aware that vista and above default to ipv6 if available, but always fall back on ipv4. The windows 8 machine is operating just fine, but seems to be only running ipv6, as via ipconfig - the v4 address it has is not conducive with the router's dhcp scheme. Again, I apologize - as a print screen would be lovely right about now. (It may or may not be important to note that the 8 machine is hard-wired into the router's ethernet switch, and when I arrived today, it was plugged into the router's 'internet' port instead of the switch, after fixing that minor issue, it operates exactly the same)

The windows 8 machine does have a Teredo Tunneling Pseudo-Interface configured with an ipv6 address, but the others are not showing anything other than media disconnected. This is the only discrepancy between this machine and the laptop running 7HP. It doesn't have the teredo interface configured.

The laptop running windows 7 refuses to connect to or ping about anything. Oddly, google and facebook can be browsed to and pinged just fine, it resolves them as ipv6 in ping. So as that occurred, I figured that maybe there was an issue with the DNS - so I plugged in google's for the v4 dns server, and it's v6 servers on the ipv6 settings. This resulted in no change, still unable to resolve the vast majority of hosts. Disabling ipv6 from the adapter properties - and relying on only ipv4, and the result is this: limited or no connectivity, even though the router is pushing ipv4 addresses via dhcp, and the router is using google's DNS server. (Having said that, the most interesting thing is that the router is old enough that it doesn't support ipv6)

I have - through my google searches, discovered a few registry hacks that force disable ipv6, but those have been unsuccessful. I re-installed the teredo adapter , and qualified it via netsh, with no change again.

Steps I haven't taken yet include downloading up-to-date drivers for network adapter (which I will do tonight while off-site) and flashing the router with a 3rd party option supporting ipv6.

So far as I can tell, I'm not sure what route to follow here otherwise. If anyone has experience with a situation like this - please let me know. Any advice would be greatly appreciated, and I shall gather more diligent data/information/screens tomorrow when back on-site.

My System SpecsSystem Spec
09 Feb 2014   #2

x64 (6.3.9600) Win8.1 Pro & soon dual boot x64 (6.1.7601) Win7_SP1 HomePrem

The Deets: Two machines at my ex-girlfriend's parents house

Well that right there can be an issue

Here are a few informative links re: IPv6, you can test the machines and see if that helps gets you closer to a resolution.
World IPv6 Launch
IPv6 test - IPv6/4 connectivity and speed test
Test your IPv6.
Ready for the future of the Internet?

A few Hughesnet links that might point to the information you need:
Google site search Hughesnet for IPv6 (some results below)
HT1000 sat modem:
HT9000 sat modem:
HughesNet newletter Winter 2013
HughesNet KB: configure your home network (at the bottom it lists routers and provides links)

I recall an MS KB re: IP precendence... it was IPv4 then IPv6, but I think it has changed. There might be a MS Fixit - I'll look around and see If I can add some clarity to my comments.

My System SpecsSystem Spec

 IPv6 Problems with Home Network

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