Myrna has lost her internet connection. She also found something called "Teredo" on her machine. Has she been hacked? Leo says no. Teredo is a new software standard which gives access to IP vs. 6 Internet IP addresses, called "IP tunneling," and Myrna's ISP probably enabled it as it was already part of Windows. She can read more about Teredo here.
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2x Xbox Teredo Ip problems. - BT Community However the wireless connected xbox is struggling to connect online with "can't get a teredo ip address" when 'test multiplayer connection' is checked. I have tried moving that xbox behind the DMZ, resetting the dns settings, giving the xbox a static ip address, nothing is working! Forced to Reboot XR500 Daily - XB1X Can't Find Teredo IP