For the record, if anybody feels the same problem: you only need to modify "properties" from c:\windows\system32\tunnel.sys in order to withdraw all permits for all users, including Administrator. It works perfect.

Thus IPv6 and/or Teredo can and (quite likely) should be disabled if it’s not in use to conserve system resources such as network bandwidth. Unlike Windows XP, IPv6 in Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 and their server equivalent or later cannot be uninstalled, according to Microsoft. However, IPv6 can be disabled. Oct 04, 2009 · Windows 7 Forums is the largest help and support community, providing friendly help and advice for Microsoft Windows 7 Computers such as Dell, HP, Acer, Asus or a custom build. After disabling Teredo Tunneling-Interface(TTI) I gained back 10% of my system resources in Windows 7 and it fixed a problem with Symantec 360 v3 pop-ups. Apr 18, 2017 · IPv4/IPv6 Nightmare (No Internet Access) (Teredo) - posted in Windows 7: I have two almost identical Win 7 x64 boxes. One works flawlessly, the other has massive Internet connectivity issues. Jun 12, 2012 · Set Teredo State - Enable - choose "Client" (If after doing all steps it fails, try choose Enterprise Client instead.) After that, Win+R , services.msc, look for "IP Helper" and restart services. Now , Win+R, cmd, input " netsh interface teredo show state" and you should be seeing something like this:

Aug 27, 2013 · To disable unused IPv6 transition protocols on a per-host basis on Windows 7 client using netsh, open an elevated command prompt and execute the following commands: netsh interface 6to4 set state disabled netsh interface teredo set state disabled netsh interface isatap set state disabled

Turn Off Teredo by Using Graphical User Interface. In Windows Vista and Windows 7, click Start-> Control Panel-> System and Maintenance and open Device Manager; In Windows 8, Windows 8.1 and Windows 10, open Power User Quick Access menu, and select Device Manager. Click Continue or OK if prompted with UAC permissions request. Apr 25, 2011 · Greg Ferro’s post about how Microsoft Teredo is a suboptimal networking solution made me think it’s time to update my old post on how to disable Teredo in Windows 7 and in Windows 8. For the record, I agree — I’ve had serious problems with it conflicting with my native IPv6 connectivity.

Jun 12, 2012 · Set Teredo State - Enable - choose "Client" (If after doing all steps it fails, try choose Enterprise Client instead.) After that, Win+R , services.msc, look for "IP Helper" and restart services. Now , Win+R, cmd, input " netsh interface teredo show state" and you should be seeing something like this:

Apr 15, 2019 · Enter in set teredo client and hit Enter; Go back to the Device Manager and Scan for New Hardware. Select Show Hidden Devices from the view menu. The Teredo Tunneling Pseudo-Interface should now be present with no errors. If the above steps did not resolve the issue, there are also steps that can be taken to edit the registry to resolve the Oct 03, 2013 · 2. Re-Enabling IPv6 in Windows 7 and Server 2008 R2. If you want to re-enable IPv6 in Windows 7 or Server 2008 R2, the following two methods were provided by Microsoft. These are also documented on the Microsoft web site (look at the Microsoft knowledge base article KB 929852 article for more details). 6. A Few Words about Teredo. Windows 7 supports Teredo, and Teredo becomes very apparent when you are working with VPNs. Teredo is a tunneling protocol that encapsulates IPv6 packets within IPv4. It is intended to be a temporary bridge as all networks transition from IPv4 to IPv6. Teredo uses Teredo clients and Teredo servers. If Eldon's answer doesn't work, Teredo can be blocked using a firewall (or potentially by a firewall). Try turning off security for a few seconds in a safe environment (away from public wifi hotspots) to see if it works and then turn it back on.