Hurricane Electric's IPv6 Tunnel Broker Forums

Tunnelbroker.net Specific Topics => Questions & Answers => Topic started by: Napsterbater on February 07, 2018, 12:37:51 PM

Title: Youtube/Facebook Video Slow/Buffering.
Post by: Napsterbater on February 07, 2018, 12:37:51 PM
Anyone else noticing issues with Youtube and/or Facebook video buffering alot more recently over HE IPv6 Tunnel?

This is on TServ13 Ash1 for me. Tunnel ID: 175140

Note Comcast IPv6 speed test show full 30+mbps (my ISP Subbed Speed) during the issues.

One of the Youtube/Google content servers having an issue, only 300-500kbps from it, r1---sn-vgqskn7z.googlevideo.com / 2607:f8b0:4009:3b::7

Edit: 2nd cotent server, r3---sn-vgqsknes.googlevideo.com   2607:f8b0:4017:32::8  only about 800kbps from it.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: JRMTL on February 07, 2018, 05:59:39 PM
no issues via nyc4 tunnel which routes youtube via lga    2607:f8b0:4006::/48
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: felddy on February 09, 2018, 07:51:28 AM
For the last couple of weeks I'm seeing the same behavior.  I'm don't think that it is limited to a single youtube host.  Here are the details of what I'm currently seeing:

Tunnel ID: 68971
Endpoint: tserv2.ash1.he.net (216.66.22.2)
Youtube host: r1---sn-a5meknek.googlevideo.com (2607:f8b0:401c:1b::7) 

Very slow to initial buffer, and then large drops in speed.  At times the stream will stop completely. 
I'm coming in from a 100Mbps FIOS connection.  No detectable issues on the IPv4 interfaces.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: Cabal696 on February 09, 2018, 12:25:48 PM
Been having the same issue here with tserv1.phx2 for the past couple weeks. No issues when toggling off IPv6 resolution in Firefox. I'm stringent with setting a max-mss on outgoing TCP traffic, so I don't think this is a local issue.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: garothor on February 09, 2018, 01:35:10 PM
Same issue here with Chicago.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: papamidnight on February 10, 2018, 01:02:48 AM
Same here.

Utilizing the end point 216.66.22.2
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: mthode on February 10, 2018, 05:53:32 PM
Ya, same here with 216.66.22.2
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: garothor on February 14, 2018, 01:19:50 PM
As a workaround for the time being I've added the following domains to the network.dns.ipv4OnlyDomains preference in Firefox's about:config and it appears to have mitigated the issue. 

youtube.com, youtu.be, googlevideo.com, ytimg.com
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: ikkuranus on February 14, 2018, 07:54:34 PM
It also seems to affect Directv Now. I hate to give up static V6 as it's impossible to make Pfsense automatically update dynamic v6 hosts but with YT/DTV buffering all the time I have no choice.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: garman9000 on February 15, 2018, 08:16:27 PM
Hate to say "me too", but "me too". Also on the Ashburn POP. YouTube is unusable through my IPv6 he.net tunnel.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: DJX on February 16, 2018, 11:58:04 AM
Same problem here.
Using tunnel server: 216.66.22.2

As a workaround I have added *.youtube.com and *.1e100.net to my IPv6 DNS blacklist.
You can find more information about how I accomplished this if you refer to my thread here: https://forums.he.net/index.php?topic=3794
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: kriteknetworks on February 16, 2018, 04:42:36 PM
Can't tell, looks like comcast is throttling ipv6 traffic if I dont use native. I get full download speeds with native, but 1MBps when using HE tunnel.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: Napsterbater on February 17, 2018, 07:59:59 AM
Can't tell, looks like comcast is throttling ipv6 traffic if I dont use native. I get full download speeds with native, but 1MBps when using HE tunnel.
They are not throttling. Congested link more likely.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: artooro on February 20, 2018, 02:32:06 PM
I've been seeing this a lot for the last week or so with YouTube. Sometimes videos don't even play. I am using the Toronto 216.66.38.58 endpoint. Disabling IPv6 on the computer resolves the issue.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: kriteknetworks on February 21, 2018, 08:35:33 PM
Can't tell, looks like comcast is throttling ipv6 traffic if I dont use native. I get full download speeds with native, but 1MBps when using HE tunnel.
They are not throttling. Congested link more likely.
Can you please tell me how you arrived at your conclusion?

My download speeds for the last 9+ months have consistently been capped at 9-11Mbps when on HE tunnel. 125Mbps if I use comcast native. Also consistently get faster upstream on HE tunnel, typically 14-17Mbps. Its not typical to have faster upstream than downstream on residential cable connection. I don't see this behaviour when using comcast native ipv6.

I have been a tunnel user with HE for many years, and have never experienced any throttling/rate limiting on tunnels, but this throttling began in spring 2017, and hasn't changed since. During that time there were changes in comcast network and service in my area. Prior to this I had no problems.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: JRMTL on February 22, 2018, 12:42:21 PM
i'm now experiencing buffering with youtube via nyc4
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: linuxgemini on March 02, 2018, 01:13:15 AM
Unfortunately, I also have the issue on Tserv1 LON2 averaging at 800Kbps.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: broquea on March 06, 2018, 03:53:03 PM
There were some adjustments made last week, so please retest.
Also if you are going to report an issue, email ipv6@he.net and open a troubleticket.
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: garman9000 on March 07, 2018, 06:31:19 PM
Thank you! At least from ashburn things are looking better. I feel bad sending trouble tickets in for a free service :)
Title: Re: Youtube/Facebook Video Slow/Buffering.
Post by: JRMTL on March 07, 2018, 07:00:41 PM
tested a 4k stream and things are also looking good from nyc4 pop.

@garman9000 I equally feel your quilt. Sad part is that in my experience HE's support for a free service is head and shoulders above the support of many ISPs for their paid services.