good sync low throughput

Huawei AIO

I have good sync but low throughput.
Using a variety of speed test sites good Up but generally mid 60's dB Down
Those that show Latency/Buffer bloat currently, good down but high(er) up.

My HH6 reports
Data rate: 20.00 Mbps / 80.00 Mbps
Maximum data rate: 27577 / 88670
Noise margin: 15.6 dB / 7.5 dB
Line attenuation: 10.9 dB
Signal attenuation: 6.2 dB / 10.9 dB

Here are two test from the labs & labs2 sites

https://www.thinkbroadband.com/speedtest/15989629495...
https://www.thinkbroadband.com/speedtest/15989625833...

A friend, on another exchange and similar setup, and with a 76mB downloads, running the same two test gets a flatter graph.

https://www.thinkbroadband.com/speedtest/15990253063...

Any comments please ?.

Are you testing on a wired port? If wireless it could be bad local interference, so use wired if at all possible.

Make sure that *nothing else* is on your network during the test. Things like PCs doing remote backups to the cloud could be using up much of your bandwidth - speedtest will only show what's left over.

Does this change depending on time of day? If it's high and flat at 1am, but bad during the day, it could be congestion in your ISP.

Otherwise: try changing the CAT5 cable between your PC and router (and router to modem if that's separate). Try testing from a different PC. Problems with PC NIC drivers, and with PC antivirus, can cause such problems.

If you can borrow another router to prove whether it's your router or not, that would be a last resort.

Thanks candlerb

Always wired.
Day/time makes no difference.
More than one router and in the master socket using other cables.
More than one computer. One taken to the friend got the 76mB available.
More than one browser.
Nothing else downloading or streaming.
Several OR visits.
Two lifts and shifts.
Neighbour's ( regular users ) not very happy with theirs either.
The 2 Sky users told they can't have the 80/20 package due to network issues !.

In reply to a post by lmschuffer:

The 2 Sky users told they can't have the 80/20 package due to network issues !.

Told by who? And network issues with Sky or Openreach?

This is my speedtest on Plusnet - https://www.thinkbroadband.com/speedtest/15995715011...

What exchange and cabinet are you on? There was a thread on here recently where Openreach acknowledged that the fibre cabinet was short of capacity between the cabinet and exchange and they planned on adding another fibre. The only difference - that issue was peak time congestion only IIRC, which you're saying is not the case for your issue?

A Sky user got an email saying they would upgrade him to 80/20 at no extra charge.

Later he got another email saying we cannot upgrade you as promised due to network issues.

The other rang Sky support to ask for an upgrade and was told by the agent that BT had told them that nobody in our postcode could have 80/20.

What cabinet and exchange?

SWPEK

8

When you showed this graph https://www.thinkbroadband.com/speedtest/15989629495...

It's really odd, for the x6 to be slower than the single threaded download test. It does look like something else on the network or PC was using bandwidth until that large uptick in the graph, or like some kind of firewall issue.

But then the upload looks a lot more like congestion. It starts high and then TCP congestion control throttles it back.

Could be congestion, but strange to see congestion at off-peak times. Next time you do a speed test on the PC, open task manager and monitor network usage, check nothing else is running.

Email Openreach, someone high up, you can Google for emails. Ask them to check for bandwidth capacity issues and packet loss issues at your cabinet. BTWholesale speed tests, should also give them clues to it as it's logged if there is an issue. I'm the user who got Openreach to find the issue pointed out above, but like they said, it is a peak time only issue.

Very odd to see congestion at that time of day, as seen in your tests. Try doing more tests, morning, noon and 8-10pm.

Edited by deleted (Fri 11-Sep-20 20:14:32)

Scott88c.

Thanks.

As I posted earlier my speed test results are the same regardless of day/time.

The Sky user mentioned above on 40/10 ran the same tests, I suspect he did them on a phone ( wifi ) .

Although understandably slower the graph pattern is very similar.

labs/labs2/labs/labs2

https://www.thinkbroadband.com/speedtest/15998300786...
https://www.thinkbroadband.com/speedtest/15998301948...
https://www.thinkbroadband.com/speedtest/15998305194...
https://www.thinkbroadband.com/speedtest/15998305986...

Should have added KDB test

Test Outcome Pass
Test Outcome Code GTC_FTTC_SERVICE_0000
Description GEA service test completed and no fault found .
Main Fault Location OK
Sync Status In Sync
Downstream Speed 79.9 Mbps
Upstream Speed 20.0 Mbps
Appointment Required N
Fault Report Advised N
NTE Power Status PowerOn
Voice Line Test Result Pass
Radio Frequency Ingress Not Detected
Repetitive Electrical Impulse Noise Not Detected
Cross Talk Not Detected
Estimated Line Length In Metres 167.1
Upstream Rate Assessment Very Good
Downstream Rate Assessment Very Good
Interference Pattern Not Detected
Service Impact No Impact Observed
Home Wiring Problem Not Detected
Downstream Policing Discard Rate 0.0
Customer Traffic Level Upstream and Downstream traffic detected
Technology VDSL
Current 15Min Bin Retrains 0
Last 15Min Bin Retrains 0
DP Type External
Profile Name 0.128M-80M Downstream, Retransmission Low - 0.128M-20M Upstream, Error Protection Off
Time Stamp 2020-08-29T08:45:00
Parameters MIN MAX AVG
Down Stream Line Rate 79.9 Mbps 79.9 Mbps 79.9 Mbps
Up Stream Line Rate 19.9 Mbps 19.9 Mbps 19.9 Mbps
Up Time 3.0 Sec 900.0 Sec 895.5 Sec
Retrains 0.0 1.0 0.0