my ipv6 speeds are slower than ipv4

So I recently just setup ipv6 on my router, but the speeds seem to be lacking compared to ipv4. I'll give some details below of my equipment and service.

Modem: Netgear CM1200

Router: Netgear Nighthawk R7000P

ISP: Comcast - Gigabit

When on ipv6, my xfinity speedtest hits around 657 Mbps. But if I turn off ipv6 (within my windows network adapter), my ipv6 speeds hit around 945 Mbps. I will post more information down below.

Speed test I used: https://speedtest.xfinity.com/

I got 10/10 on this site: https://test-ipv6.com/

For my router, I intially had chosen Auto-detect, in which it choose DHCP for me. As you can see, I also changed my DNS to cloudflares 1.1.1.1.

Thanks for any help on this issue.

3 Replies

tduckly0
Aspirant
Jan 30, 2021
For context, here are some screenshots.

Apparently my screenshots don't work?
- michaelkenward
  Guru - Experienced User
  Jan 30, 2021
  It may be some time before the images land. To ensure that you aren't posting anything naughty, a Netgear moderator has to approve the pictures.
  
  You can attach images to messages without any delay.
  - tduckly0
    Aspirant
    Jan 31, 2021
    yeah I think the pictures just showed up now. do you (michaelkenward) happen to know anything about the issue I'm having? where ipv6 is slower than ipv4.

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my ipv6 speeds are slower than ipv4