Enable IPv6 on your modem 

In the IP Addressing section of your modem's advanced settings, you can enable the IPv6 address on your modem. Please note that IPv6 is not available in all areas, and not all modems are compatible with IPv6.  
Modem Advanced Step 1-4

1.  Connect a device, such as a computer or tablet, to the internet through WiFi or using an Ethernet cable connected to your modem.

2.  Open a web browser and type into the web address field.

3.  Log in to the modem's online user interface (Modem GUI) using your Administrator Username and Administrator Password. Unless you have changed the default settings, you can find this information on the modem's sticker. Note that these are different from your wireless SSID and security key.

4.  Select "Advanced Setup."

5.  Select "IPv6 LAN Settings" in the left sidebar. 

6.  Select "Stateless" for the LAN connection type.

7.  Select "Apply" to save your changes.

8.  Now select "IPv6 WAN Settings" in the left sidebar. 

9.  Select "Enable."

10.  Select "6rd" for the WAN IPv6 connection protocol.

11.  Select "Apply" to save your changes. 

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