Q: Netflix quality HORRID after update

Maha66 wrote:

 

How do you know if your "sourcing from nflxvideo.net" and how do you "block it"?

Monitor your traffic and adjust your packet filter/firewall.

bodosom wrote:

 

I posted about nflxvideo vs llnw/level3 stream performance so I took the next step and blocked access to nflxvideo.  When sourcing from nflxvideo I was getting 235 to 3000.  After blocking nflxvideo I'm sourcing from Limelight and getting 5800.  It's only 18:15 US/Eastern but this is certainly better performance than I've seen.

 

So Netflix could have fixed the client problem by changing routing for the ATV3 so it streams from "better" CDN.  Traffic information from another Rochester area Time Warner customer might point to route propagation issues.

 

Interesting.

So I just checked and now my Apple TV is sourcing from Limelight Networks (and same as last night continues to get 5800 kbps). While I was still seeing the issue my  Apple TV was sourcing from Netflix Streaming Services while Airplay was working well and sourcing from Limelight Networks (see my Dec 12 post)

This seems to support your theory above.

Vandergraff wrote:

 

bodosom wrote:

 

I posted about nflxvideo vs llnw/level3 stream performance so I took the next step and blocked access to nflxvideo.  When sourcing from nflxvideo I was getting 235 to 3000.  After blocking nflxvideo I'm sourcing from Limelight and getting 5800.  It's only 18:15 US/Eastern but this is certainly better performance than I've seen.

 

So Netflix could have fixed the client problem by changing routing for the ATV3 so it streams from "better" CDN.  Traffic information from another Rochester area Time Warner customer might point to route propagation issues.

 

Interesting.

 

So I just checked and now my Apple TV is sourcing from Limelight Networks (and same as last night continues to get 5800 kbps). While I was still seeing the issue my  Apple TV was sourcing from Netflix Streaming Services while Airplay was working well and sourcing from Limelight Networks (see my Dec 12 post)

 

This seems to support your theory above.

This makes a ton of sense and is consistent with what I've been told by apparently competent Netflix tech support staff about different CDN's serving different devices.

Users who are still having trouble with their ATV streaming should look at their router to learn how to determine what open connection(s) their ATV has while streaming netflix and also how to block, via their firewall, that particular CDN ip range.

I have been unable to find a definitive list on the net of Netflix CDN ip ranges which is somewhat interesting.  As I think about it, this could easily address a large swath of streaming problems where the user's pipe is apparently sufficient (10Mb+) but the quality simply isn't there.  It is consistent with the tendency of level 1 Netflix reps to have you test with a computer (once they've wasted your time making sure you aren't streaming over WiFi) "because it works better".

boylan wrote:

This makes a ton of sense and is consistent with what I've been told by apparently competent Netflix tech support staff about different CDN's serving different devices.

I've seen multiple devices served by the three networks I've seen.  The Apple devices tend to use llnw but it's not exclusive.  Only the ATV has problems with Netflix own CDN.

boylan wrote:

Users who are still having trouble with their ATV streaming should look at their router to learn how to determine what open connection(s) their ATV has while streaming netflix and also how to block, via their firewall, that particular CDN ip range.

Filtering should probably be specific if you have non-ATV Netflix clients.

Add me to the success list. For a month or so, I was only able to view Supernatural or Louie in SuperHD exactly one time...until tonight. Netflix took about a minute to rehash itself via the spinning wheel but afterwards, Supernatural had no hiccups whatsoever (as expected for 35mbps down per speedtest.net) and looked great in full 1080p.

Now, let's see how they handle the PR nightmare that this has caused both Apple and Netflix. Either way, very pleased that they finally addressed it after a month of pretending it wasn't an issue. Better late than never I suppose. :-)

Just devoted my ATV. Played warehouse 13 and it was Super HD for 10 seconds then buffered and now a fuzzy mess. I am disconnecting this junk and selling it on eBay. Back to the Roku 3.

My network has been a bit erratic tonight, so I am hoping that is why I am only getting up to 1750 on my ATV, which is better than it has been. However, my wife's Surface just made it up to 5800, though it is bouncing around and not sticking at 5800. Every device I have is bouncing around with Netflix at the moment (though most at higher peaks than ATV), so I'm going to withhold judgement until my network settles down.

Disconnected. Anyone want a slightly used ATV?

My network seems to be fine now - Vudu HDX test maxes out and speed tests are back to normal. ATV playing at 2350. Oh well...I'm glad it's working for most.

Thank you: bodsom 

---For the suggestion of blocking "nflxvideo.net (108.75.32.0/20)" at the router firewall level.  The quality is still good on my ATV but I'll have to figure out how to block if the quality becomes poor again.  This would explain why using a VPN works; also why Verzion cellular was giving me a better quality stream a earlier this week.

I looked up 187.75.32.0 and it's AT&T Uverse although nflxvideo.net is of course registered to Netflix.  Bodsom are you using Uverse?

Without sounding like a netflix phone adviser, for those that are still having trouble try signing out of netflix than restart or unplug your atv then sign back in. Mine took right off without doing anything.As far as roku 3 i tried one when all this started & didnt like it, wifi weak, pix quality not as good as atv.

Update: Watched 2 hours of Netflix during primetime last night with no quality issues. ATV2, Northern Indiana, Comcast.

Forgive me, but I've missed the last 10 pages, but looks like maybe the problem is fixed or getting better? 

What's the fix?  Netflix problem? Apple problem?

Im an old guy & not tech savy when it comes to computers. I do have a degree in electronics & retired after 40 years in the business. I to would like to know what fixed the problem & who fixed it.Sometimes just good old common scense works better .

Brian65PLS wrote:

 

Thank you: bodsom 

---For the suggestion of blocking "nflxvideo.net (108.75.32.0/20)"

Sorry, that was a typo: it's 108.175.32.0/20.  By the way, there can be some downsides to this.  It will break some clients (apparently none of the Apple clients) and if that CDN is the  sole source of a stream the stream will be  unavailable so you should only apply this filter to your ATV.