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Standard User nidstigator
(newbie) Wed 24-Jan-18 10:33:37
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Swithced to talktalk. Is this latency typical?


[link to this post]
 
Hi All

I switched to talktalk from virgin yesterday. Please see below my latency graph generated from TBB.

(Huge red bar is downtime while installing, before red bar- virgin with SuperHub 2AC in modem mode, after red bar, TalkTalk)

I am using a Draytek Vigor 130 hooked up to a Linksys WRT1900ACS. My speeds are hovering around 46Mbps/18Mbps Up/Down even though I subscribed for the 80/20 service and my sync shows the max (79999/19999).


https://www.thinkbroadband.com/broadband/monitoring/...

My main concern is the dropped packets and low speeds. Is this because the line needs a few days to stabilise or should I expect this service at all times (and sometimes worse)?

Thanks
Administrator MrSaffron
(staff) Wed 24-Jan-18 10:46:10
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Re: Swithced to talktalk. Is this latency typical?


[re: nidstigator] [link to this post]
 
Dropped or just delayed?

If you were using the connection during 4pm to midnight then the yellow is most likely just down to your download or upload activity i.e. what you are doing does have an impact on latency

It is when you see the red during idle periods that you have problems.

Low speeds - FTTC should start of at the maximum possible and only slow things down if there is problems, so would need to see speed tests. FTTC does NOT start with slow speeds and then climb up.

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User jaydub
(fountain of knowledge) Wed 24-Jan-18 11:43:22
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Re: Swithced to talktalk. Is this latency typical?


[re: nidstigator] [link to this post]
 
I wouldn't be too concerned about your latency spike. In terms of packet loss there is a downward spike at 2am, but it doesn't look like a loss of sync so may just be DLM resetting itself.

Your average ping times are quite high for FTTC (although this may just be dependent on geography), but I'd definitely go into the modem to look at the DSL stats and post them here.

It may well be that you have some interleaving applied, which may partially explain your speed test results.

Please also post your TBB results graph (as MrS has requested) as that will provide a greater insight into what is happening with your line.


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Standard User ukhardy07
(knowledge is power) Wed 24-Jan-18 12:12:19
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Re: Swithced to talktalk. Is this latency typical?


[re: nidstigator] [link to this post]
 
Minimum latency looks better on TalkTalk than Virginmedia.
Can you run a speedtest at speedtest.net and let us know the results for a comparison?
Also run a test over here and post the results:
https://www.thinkbroadband.com/speedtest

2AM dropped packets is likely due to DLM, which runs in the evening, or a download of some sorts.

Nothing bad here in my view, looks very good and clean.
Standard User nidstigator
(newbie) Wed 24-Jan-18 12:53:23
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Re: Swithced to talktalk. Is this latency typical?


[re: MrSaffron] [link to this post]
 
Thanks Andrew!

Maybe delayed? I was referring to the little red dots (and sometimes little spikes) between 4PM - midnight (which is while I was mainly using the line)

Regarding yellow spikes, I think you're right, mainly usage impacting latency.

However, we were def sleeping when that 2am big spike happened. I've checked the modem this morning and it said uptime 18hrs. Router said same thing too.

Do you think I should file a low speed complaint? Here is the speedtest I run yesterday:

https://www.thinkbroadband.com/speedtest/15167300028...
Standard User nidstigator
(newbie) Wed 24-Jan-18 13:10:36
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Re: Swithced to talktalk. Is this latency typical?


[re: jaydub] [link to this post]
 
What do you mean by the DLM resetting itself? Would that cause a downtime? I wasn't using the connection at that time.

The ping times I believe are higher in Northern Ireland than other areas in the U.K. Here are my modem stats:

---------------------- ATU-R Info (hw: annex A, f/w: annex A/B/C) -----------
Running Mode : 17A State : SHOWTIME
DS Actual Rate : 79995000 bps US Actual Rate : 19999000 bps
DS Attainable Rate : 80373384 bps US Attainable Rate : 25659000 bps
DS Path Mode : Fast US Path Mode : Fast
DS Interleave Depth : 1 US Interleave Depth : 1
NE Current Attenuation : 15 dB Cur SNR Margin : 5 dB
DS actual PSD : 6. 5 dB US actual PSD : 13. 3 dB
NE CRC Count : 1604 FE CRC Count : 39
NE ES Count : 890 FE ES Count : 37
Xdsl Reset Times : 0 Xdsl Link Times : 1
ITU Version[0] : b5004946 ITU Version[1] : 544e0000
VDSL Firmware Version : 05-07-06-0D-01-07 [with Vectoring support]
Power Management Mode : DSL_G997_PMS_L0
Test Mode : DISABLE
-------------------------------- ATU-C Info ---------------------------------
Far Current Attenuation : 17 dB Far SNR Margin : 14 dB
CO ITU Version[0] : b5004244 CO ITU Version[1] : 434da48c
DSLAM CHIPSET VENDOR : < BDCM >


Here is more stats:


Near End Far End Note
Trellis : 1 1
Bitswap : 1 1
ReTxEnable : 0 0
VirtualNoise : 0 0
20BitSupport : 0 0
LatencyPath : 0 0
LOS : 0 0
LOF : 0 0
LPR : 0 0
LOM : 0 0
SosSuccess : 0 0
NCD : 0 0
LCD : 0 0
FECS : 47621 307 (seconds)
ES : 890 37 (seconds)
SES : 0 0 (seconds)
LOSS : 0 0 (seconds)
UAS : 34 12641 (seconds)
HECError : 0 0
CRC : 1604 39
RsCorrection : 0 0
INP : 0 0 (symbols)
InterleaveDelay : 0 0 (1/100 ms)
NFEC : 254 255
RFEC : 16 16
LSYMB : 5374 21451
INTLVBLOCK : 127 255
AELEM : 0 ----



I noticed that G.INP is disabled on the line (ReTxEnable) but I see that my line is on a Fast (not interleaved) path.

The speed test results are in my reply to Andrew. Would appreciate some insight!

Thanks a lot!
Standard User nidstigator
(newbie) Wed 24-Jan-18 13:12:03
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Re: Swithced to talktalk. Is this latency typical?


[re: ukhardy07] [link to this post]
 
Top reason I switched away from Virgin was fluctuating latency. The irony is that very expensive package (VIVID 200 Gamer) is 'tailored' for gamers. It was too late when I realised that the latency problems aren't just coming from the SuperHub 3, but in fact the nature of their network.

Please see my test results in my reply to Andrew. Thanks!
Standard User nidstigator
(newbie) Wed 24-Jan-18 13:19:51
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Re: Swithced to talktalk. Is this latency typical?


[re: nidstigator] [link to this post]
 
For reference, in addition to TBB's result, here is my result from SpeedTest (over Ethernet as well)

http://www.speedtest.net/result/6995508639

This is even below the downstream hand-back threshold (55mbps). (see here: https://imgur.com/a/9z4Ss)

I believe I have only until next week to cancel. After that I'll be stuck with them for 18 months. Any ideas?
Standard User baby_frogmella
(fountain of knowledge) Wed 24-Jan-18 13:33:10
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Re: Swithced to talktalk. Is this latency typical?


[re: nidstigator] [link to this post]
 
Do a speedtest with the PC directly connected to the Vigor 130 to rule out issues with the Linksys. You may need to setup a PPPoE connection on your PC in order to do this. Also ensure the firmware on the Vigor 130 is up to date.

FluidOne FTTP On Demand 330/30 Mbps
Netgear Nighthawk X10
Standard User ukhardy07
(knowledge is power) Wed 24-Jan-18 13:47:31
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Re: Swithced to talktalk. Is this latency typical?


[re: nidstigator] [link to this post]
 
Can you connect the supplied talktalk router and do speedtests over ethernet. TalkTalk will not acknowledge a fault until this is done anyway.

Can you also post stats from the talktalk router please?
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