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ozzler
Aspiring Contributor
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Message 11 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

Apple TV is set to super low priority with very limited upload. See latency results below. Single 1080p live feed. 

 Screenshot_3.png

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Highlighted
Distinguished Sage
Distinguished Sage
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Message 12 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

Some figures from my ADSL connection.

Not streaming Netflix

C:\Users\Keith>ping -n 20 bbc.co.uk

Pinging bbc.co.uk [151.101.128.81] with 32 bytes of data:
Reply from 151.101.128.81: bytes=32 time=10ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=10ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=10ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=10ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57

Ping statistics for 151.101.128.81:
Packets: Sent = 20, Received = 20, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 10ms, Maximum = 11ms, Average = 10ms

Now while running a single HD Netflix stream.

C:\Users\Keith>ping -n 20 bbc.co.uk

Pinging bbc.co.uk [151.101.128.81] with 32 bytes of data:
Reply from 151.101.128.81: bytes=32 time=12ms TTL=57
Reply from 151.101.128.81: bytes=32 time=12ms TTL=57
Reply from 151.101.128.81: bytes=32 time=15ms TTL=57
Reply from 151.101.128.81: bytes=32 time=13ms TTL=57
Reply from 151.101.128.81: bytes=32 time=14ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=13ms TTL=57
Reply from 151.101.128.81: bytes=32 time=46ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=15ms TTL=57
Reply from 151.101.128.81: bytes=32 time=15ms TTL=57
Reply from 151.101.128.81: bytes=32 time=12ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=14ms TTL=57
Reply from 151.101.128.81: bytes=32 time=12ms TTL=57
Reply from 151.101.128.81: bytes=32 time=11ms TTL=57
Reply from 151.101.128.81: bytes=32 time=14ms TTL=57
Reply from 151.101.128.81: bytes=32 time=12ms TTL=57
Reply from 151.101.128.81: bytes=32 time=14ms TTL=57

Ping statistics for 151.101.128.81:
Packets: Sent = 20, Received = 20, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 11ms, Maximum = 46ms, Average = 14ms

Very little difference, which seems to me to indicate that the issue is on FTTC connections, which runs over a shared fibre link back to the exchange.

ADSL equipment in the exchange has a direct connection into the BT Wholesale network.

As I have said many times before, FTTC (Superfast Fibre) is optimised for content delivery, which is why the ISPs like to promote it, as it allows them to sell other services like TV.

My connection information.

DSL

Line Status:Connected

DSL Modulation Type:ADSL_2plus

Annex Type:Annex A/L

 

  Upstream Downstream
Current Rate (Kbps) 1144 12143
Max Rate (Kbps) 1160 12080
SNR Margin (dB) 6.5 2.9
Line Attenuation (dB) 20.4 36
Errors (Pkts) 0 0

 

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ozzler
Aspiring Contributor
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Message 13 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

That's interesting Keith but still...a kid playing call of duty on his ps4 would notice the lag I'm getting. The notion that BT thinks this is an acceptable product because of the speed they provide is frankly disgraceful. 

I'm at a loss here so unless someone from BT sees this and maybe can look at putting me on a stable profile. I'll be leaving them for another ISP. 

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Syner9y
Aspiring Contributor
374 Views
Message 14 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

Hi,

 

I've been having the _exact_ same issue for the last 3 weeks - it didn't happen before this.

 

I have tried everything, from 3 new routers, to new modems, to recabling everything, new master socket, getting an engineer out to check the lines.

 

I have had some respite by limiting the download of the netflix devices to 2Mbits down and 0.2 Mbits up, this gives me a semi stable latency for gaming and VOIP - but this must be a BT issue that they are not willing to acknowledge.

 

I will be moving to another ISP as soon as my contract is up.

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Distinguished Sage
Distinguished Sage
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Message 15 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

Its the upload speed of Netflix that you need to restrict, not the download speed.

The Netflix issue will be the same on another ISP.

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Syner9y
Aspiring Contributor
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Message 16 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

Hi Keith,

 

I appreciate the response - I limited the upload, still had severe latency issues.

 

I have now limited _every_ device on my network to 2Mbit down and 0.5Mbit up, as _any_ device that attempts to use the internet without the restriction in place causes a latency spike (even just simply loading a web page, or a little youtube) - yet my line is apparently fine (72 down/19 up).

 

(both netflix TV's, and the iPad are limited, now I only spike to ~30ms) - this appeared out of the blue 3 weeks ago when nothing had changed on my network.

 

I have made my problem managable, but have hit a brick wall with BT and will be leaving, and encourage anyone else having this issue to leave also.

 

Regards

 

 

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Distinguished Sage
Distinguished Sage
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Message 17 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

Before anyone thinks of moving ISP, I suggest that they read the similar posts in their chosen ISPs forum, especially if they are thinking of retaining a VDSL (FTTC) connection, also assuming that there is a spare port available in the cabinet.

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Syner9y
Aspiring Contributor
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Message 18 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

My neighbour on plusnet does not have this issue at all, I've even been round to check it all out.

 

To test again, I just limited the netflix TV to 0.1Mb/s upload, as per your suggestion, as soon as it starts a show and for every 3 seconds after my latency spikes to 70.

 

What would be the explanation as to why some people are unaffected, and how everyone who has this issue it has only been appearing in the past few months?

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ozzler
Aspiring Contributor
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Message 19 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

It's great to hear your neighbor isn't suffering. He will be going to the same cabinet.

BT have definitely changed something. I'll be on my new ISP on the 16th and will update to confirm this. 

I can also fix the ping issues by capping my devices, but guess what? That's not an acceptable solution, especially as I'm 99% this is an issue with the isp policy and not much else. BT refuse to acknowledge the issue at all which is the worst part. 

Keith - do you work for BT? 

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CAI_007
Aspiring Contributor
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Message 20 of 22

Re: Latency spikes while streaming video content - Unusable for gaming.

I agree with you Ozzler. It's shameful that BT have promoted these packages as perfect for streaming/gaming when the reality is they are useless in real life scenario. Not being able to stream a video on one device and a bit of gaming on a 2nd device in 2019 is a complete joke.
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