3. Modify IPv6 registry key to enable IPV6
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a. Click Start, type regedit in Search Bar, and then click regedit in the Programs list.
Note: If you are prompted for an administrator password or confirmation, type your password or click Continue.
b. Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetservic esTCPIP6Parameters
c. Check whether the "DisabledComponents" registry key exists. If so, let's move on the next steps.
d. Double click the "DisabledComponents" registry key and modify the value to 0.
(If the key doesn't exist, please create the key above and assign the value 0)
e. Exit Registry Editor, and then restart the computer.
For more information, we can refer to the link below: