Judder Netflix and HBO Go choppy framerate

T SAW DC,

I went to my friends house that has Comcast and he has the EXACT same issue as me so I am starting to think it's really the Modem/Gateway and looking into swapping it out and purchasing my own router.

I went to my other friends house that does not have Comcast and his does not display the issue.

Yes i have comcast cable, but Netflix works fine on all other devices. I did port forwarding for Xbox, so my NAT is open, it is the Xbox causing the issue. As I said: it worked fine until around June when Xbox got a new update...

Thanks for trying on your buddies network!

If you're both using the network hardware I would definitely recommend reaching out to Comcast for an alternative in network hardware. If you get a chance to try different network hardware before swapping out yours let us know how it goes.

So your friends who do not have comcast, they do not have this issue on their xbox?

I do have the issue on HBO and Netflix, but not on Amazon Prime Movies

That is the router I have, but since around 1 year...and you know what? I called comcast to disable the router functionality by calling 1 (855) 308-9453, these are the guys who know what you're talking about. Since these modems provide a hotspot named xfinity
which you can not turn off via the web interface you have to call them to switch it off from their side. So what I have now is just a dumb modem because they turned all router functions off, connected to my AirPort Extreme. Same setup since around 1 year.
It is the Xbox and I am pretty sure all Xboxs have the issue, just a few people are sensitive to the choppiness. Did you have a chance to take a look at someone's else's Xbox?