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Author Topic: Speed issues with AAISP  (Read 6507 times)

Weaver

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Re: Speed issues with AAISP
« Reply #15 on: June 14, 2018, 05:59:34 PM »

Apologies since you knew all that already. My experience with the obvious inaccuracies of speedtesters has made me extremely skeptical, that's all.

The question is where was the drop, was it further out than AA and what happened to your sync rate that day?

With the AA one this afternoon I got a variation of 14% just between two runs btw.
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Craig

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Re: Speed issues with AAISP
« Reply #16 on: June 14, 2018, 06:06:32 PM »

No harm done, completely understand where you're coming from. I'll have a deeper look at the data this evening :)
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burakkucat

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Re: Speed issues with AAISP
« Reply #17 on: June 14, 2018, 06:10:43 PM »

Well I just did http://speedtest2.aa.net.uk/ 3 times and each time I'm getting results faster than my IP Profile.
So they appear to be exaggerating results.

I just tried with my TT G.992.3 service (ADSL) and it reports results greater than my synchronisation speed!  ::)
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St3

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Re: Speed issues with AAISP
« Reply #18 on: June 20, 2018, 08:19:27 PM »

AA speedtest gives me 66/21

TBB speedtest gives me 60/16

And any other speedtest sites are more or less the same as TBB

So it looks like AA is giving incorrect readings.
« Last Edit: June 20, 2018, 08:23:27 PM by St3 »
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Weaver

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Re: Speed issues with AAISP
« Reply #19 on: June 20, 2018, 09:04:01 PM »

Plenty of other speed testers give totally impossible figures.

A good way of making users think that that particular speed tester is the best because it is not slow, overloaded or on a bad pipe.

Also some users just like to feel good.

For an ISP though it is pretty naughty as it might make your users think their ISP is wonderful. It may make them feel that the reason that their own-ISP speedtesters reads high is because the path to it is short and ISP-internal, so does not have to go n hops over the rest of the internet across hops that are slow. A more clued-up user could work out thought that the speedtester in question reads high anyway because it is just inaccurate.

AA need to fix this.
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Weaver

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Re: Speed issues with AAISP
« Reply #20 on: June 20, 2018, 09:11:33 PM »

I had no idea there even was an AA speed tester until I saw this thread recently.

For me the upstream is spot on. Downstream is very exaggerated, I make it 5% exaggeration which is quite a big error in my view. I got 8.39 Mbps combined download (don't know what that means, does that include TCP headers or TCP+IP headers or neither?). With one other well-known speed tester I get 8.01 Mbps which I think is probably fairly reasonable.

The sum of the AA Ďtx rateí settings - the rate limiters reported by AAís Ďcluelessí control server - comes to 7.9756 Mbps. (The tx rates are set currently to 99% of maximum as I wanted to see if I could improve responsiveness a little when trying to browse the web while a flat-out download is in progress but it has not worked.) That will be rate of the data transmitted including IP headers and TCP headers if any, so actual TCP payload throughput will be a good deal lower than that, say  2.67% for IPv4+TCP, 4% for IPv6+TCP and more if it is TCP with time stamps and other TCP options.
« Last Edit: June 20, 2018, 09:42:39 PM by Weaver »
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PhilipD

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Re: Speed issues with AAISP
« Reply #21 on: June 25, 2018, 05:00:33 PM »

Hi

Hey,

I recently moved from Plusnet to AAISP, nothing on my home network has changed and I still use my Billion 8900ax-2400. But on the 12th May between 13:00 and 19:00 something happened which has caused my download speeds to decrease by 5Mbps. This isn't a lot in the grand scheme of things, but it's annoying considering the speeds I used to get.

After contacting AA they have said that this is most likely due to "congestion on the open internet" as speedtest.net and fast.com always appear to top out at 67Mbps, but their http://speedtest2.aa.net.uk/ shows ~73Mbps... I've attached line stats and a screenshot from Sam Knows, anyone have any advice on what I can do?

Code: [Select]
adsl: ADSL driver and PHY status
Status: Showtime
Last Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 24511 Kbps, Downstream rate = 79007 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 79000 Kbps

Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 6.3 9.2
Attn(dB): 11.5 0.0
Pwr(dBm): -1.2 -1.2

VDSL2 framing
Bearer 0
MSGc: 18 150
B: 239 236
M: 1 1
T: 23 5
R: 0 16
S: 0.0967 0.3771
L: 19856 5410
D: 1 1
I: 240 255
N: 240 255

Counters
Bearer 0
OHF: 198117635 54172648
OHFErr: 480 18
RS: 0 3519481844
RSCorr: 0 295
RSUnCorr: 0 0

Bearer 0
HEC: 3998 0
OCD: 130 0
LCD: 130 0
Total Cells: 3156476669 0
Data Cells: 1501971239 0
Drop Cells: 0
Bit Errors: 0 0

ES: 397 18
SES: 0 0
UAS: 28 28
AS: 331807

Bearer 0
INP: 0.00 0.00
INPRein: 0.00 0.00
delay: 0 0
PER: 1.67 6.15
OR: 114.65 202.87
AgR: 79114.95 20203.27

Bitswap: 2544/2544 55/55

Total time = 3 days 20 hours 10 min 35 sec
FEC: 0 295
CRC: 480 18
ES: 397 18
SES: 0 0
UAS: 28 28
LOS: 0 0
LOF: 0 0
LOM: 0 0
Retr: 0
FailedRetr: 0
FailedFastRetr: 0
Latest 15 minutes time = 10 min 35 sec
FEC: 0 0
CRC: 1 0
ES: 1 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Retr: 0
FailedRetr: 0
FailedFastRetr: 0
Previous 15 minutes time = 15 min 0 sec
FEC: 0 0
CRC: 1 0
ES: 1 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Retr: N/A
FailedRetr: N/A
FailedFastRetr: N/A
Latest 1 day time = 20 hours 10 min 35 sec
FEC: 0 52
CRC: 115 4
ES: 98 4
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Retr: 0
FailedRetr: 0
FailedFastRetr: 0
Previous 1 day time = 24 hours 0 sec
FEC: 0 106
CRC: 121 4
ES: 99 4
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Retr: 0
FailedRetr: 0
FailedFastRetr: 0
Since Link time = 3 days 20 hours 10 min 7 sec
FEC: 0 295
CRC: 480 18
ES: 397 18
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Retr: 0
FailedRetr: 0
FailedFastRetr: 0
NTR: mipsCntAtNtr=0 ncoCntAtNtr=0

That speed test is very similar to the one Uno use, which I've used to test as speeds have dropped when sync is the same (I'm with Uno).

All I will say is if I use my routers traffic graph whilst running the AAISP speed test, is they report a speed of 71.25, and my traffic graph shows total speeds of around 66Mbits/sec.  if I run a Thinkbroad band test the throughput shown by the router matches pretty much the reported speed, at around 66Mbits/sec on the 6 x download.  The test doesn't seem to report the real throughput.

Via TalkTalk backhaul that Uno uses (you may also be via TalkTalk on AAISP) speeds over the last couple of months have been pretty poor. I sync at 80/20 which has never changed, and speeds used to be 74/18 pretty much any time day or night, now speeds hover around 40 to 50Mbits/sec on the single download test,  and no matter the day or night, I can never get over 65Mbits/sec on the single download test, it's like they've deducted 10Mbits/sec of the connection speed.

Regards

Phil




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Craig

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Re: Speed issues with AAISP
« Reply #22 on: June 25, 2018, 08:07:00 PM »

I agree that AA need to fix their speedtest - it's giving people an exaggerated result and this is especially bad if they're using this to mask underlying issues (knowingly or unknowingly) like Weaver said.

@PhillipD - I am on the TalkTalk backhaul, when using other speed testers and the weekly/monthly average, it's consistently 66.7Mbit/s - this is close to the same speed you reported so maybe we're experiencing the same issues! Mine did only start around 6 weeks ago (12th May).
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PhilipD

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Re: Speed issues with AAISP
« Reply #23 on: June 26, 2018, 04:46:11 PM »

Hi Craig

Possibly about the time I noticed.  Speeds have dropped and I can never get full speed anymore, I'm beginning to think that TalkTalk have permanently taken away some bandwidth from those of us on 80/20 in order to help average speeds elsewhere on their network.

AAISP moved their customers over to a new network at TalkTalk, I'm not sure if I moved across or not given I'm with Uno, but it was about the same time speeds started showing a decline, no matter if off peak or peak times. Current speed test at Thinkbroadband shows single threaded at 48.5Mbps, multi-threaded at 69.3Mbps, so that indicates congestion, but it's not really low enough to complain about.

Regards

Phil

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Craig

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Re: Speed issues with AAISP
« Reply #24 on: June 26, 2018, 05:23:26 PM »

When I moved over to AAISP I requested to be put straight on the new TalkTalk network, and I was on it for about a month before I lost some of my speed. You're right it's not a lot of speed, but if they have decreased our speeds to compensate for others on the network is it going to continually get worse as they have to compensate more?!
« Last Edit: June 26, 2018, 05:36:30 PM by Craig »
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PhilipD

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Re: Speed issues with AAISP
« Reply #25 on: June 26, 2018, 06:17:16 PM »

Hi

Exactly it's a speed change going in the wrong direction and if we pay for an 80/20 product because we have a line that supports it and now it might only deliver half that it's not very good.

Will see how it fairs over the next couple of weeks then consider my options.

Regards

Phil

 
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nallar

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Re: Speed issues with AAISP
« Reply #26 on: June 27, 2018, 10:30:29 AM »

The speedtest A&A use is open source. The source is here: https://github.com/adolfintel/speedtest

May be worth opening a ticket if you can prove it's inaccurate.
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PhilipD

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Re: Speed issues with AAISP
« Reply #27 on: June 27, 2018, 05:08:36 PM »

Hi

Thanks for the pointer to the source.

One thing that jumps out looking at the code is the overheadCompensationFactor which is 1.06, this hasn't been changed on the Uno test (not looked at the AA one), but it means the speed is inflated so it isn't the actual TCP throughput its show but overall throughput.

For me, I just used the Uno test and got 70Mbps, if I divide by 1.06 to undo the correction factor, I get 66Mbps, which is pretty much what ThinkBroadband is showing for their x6 test.  On this test 10 threads are used rather than 6 as used on Thinkbroadband.

So yes, it is inflating the result and is misleading.

Regards

Phil
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Jon21

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Re: Speed issues with AAISP
« Reply #28 on: June 29, 2018, 08:26:51 PM »

Iíve noticed the last few times that Iíve done a speed test on Speedtest.net, seem to max out around 48Mb. Doesnít seem to matter what server I try, whether itís near me or a server in London. If I try the TBB speed test or DSLReports, I get what I expect,  which is around 60Mb. Not sure whether itís just down to Speedtest.net or whether A&A have a issue?
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sotonsam

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Re: Speed issues with AAISP
« Reply #29 on: June 29, 2018, 09:39:16 PM »

This is an interesting thread as I think Iím experiencing the same with AAISP. I sync at about 78. but any download only ever maxes at about 67 or 68. Iím not really complaining as itís still 15mb more than I was getting with infinity, but it does seem as if there may be some issues on the TT backhaul?
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