Time Warner Cable YouTube throttling

Thu Mar 7 15:58:26 UTC 2013

Jumping on the bandwagon. I have not had the chance to follow the entire thread but have seen this behavior from AT&T Uverse, Time Warner, and Verizon FIOS. I believed initially this was a capacity issue with Google and Youtube. The reason for this thought is fairly simple with no scientific troubleshooting invested at this time. I can replicate slowness on AT&T Uverse and Time Warner at the exact same times, the anomoly is Verizon FIOS does not align with the other two. 

When there is slowness on Uverse 99% of the time my Time Warner connections to Youtube will be slow as well even if you are streaming different video's.

----- Original Message -----
From: "Randy Carpenter" <rcarpen at network1.net>
To: "NANOG" <nanog at nanog.org>
Sent: Wednesday, March 6, 2013 3:11:50 PM
Subject: Time Warner Cable YouTube throttling

We have recently been having some serious speed issues with YouTube on our home connections, which are all Time Warner Cable.
Some searching on forums and such revealed a work around:

Block 206.111.0.0/16 at the router.

This makes speeds go from ~1 Mb/s to the full connection speed (30 Mb/s in my case). It appears that TWC is forcing traffic to this netblock over a congested link, or otherwise throttling it.

Trying to communicate this to tech support results in the typical "Derrr, what?"

Does anyone at Time Warner care to comment on WTF?

thanks,
-Randy