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Aspiring Contributor
Message 1 of 4

Desperate for solution to diminishing upload speed

Hello, I'd be really grateful for some help on this as it's causing me huge problems.

My upload speed is registering on the router (Smarthub 2) and independently on Ookla at about 650-750kbs. A 2.5mb file should therefore upload in about 3-4 secs and 10 identical files ie 25mb should be less than 45 secs. I've measured the times they actually take several times over using a stopwatch and these indicate upspeeds of just 83kbs for a single file dropping to 52kbs for all 10, ie way down on what it should be. Download speed is broadly stable at 12-14mb.

The following are all the relevant facts I can think of

Switched to fibre about 3 mths ago, upload speed on ADSL was about 550kbs but file uploads at least kept to that speed.

Incoming line/master socket just checked by Openreach and absolutely fine (a fault down the road).

No difference on the above rates between using a laptop and desktop, both on separate ethernet, or using different router ports.

Changing DNS and disabling antivirus/firewall show only marginal improvements.

I am about 900 yds from the cabinet which I know explains the low rate of 750kbs.

I just don't understand why file uploads are falling so far short of the indicated speed and then slow down even further the more is uploaded. I now need to be uploading things regularly but attempting to upload a file of 1gb had to be abandoned after 4 hrs as it stuck on about 70% completion, I'm having to go to a friend's house to do larger uploads. Surely this must be a fixable problem. Does it sound as if the router's faulty or something not done right 3 mths ago on the cutover to fibre?

Many thanks

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Distinguished Sage
Distinguished Sage
Message 2 of 4

Re: Desperate for solution to diminishing upload speed

can you post hub stats if hh6 then advanced settings then technical log information

enter your phone number and post results  leave exchange and cab

run btspeedtester and when first test completes then run diagnostic test and post results

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Aspiring Contributor
Message 3 of 4

Re: Desperate for solution to diminishing upload speed

Hello imjolly thank you for v prompt response. Here are stats, in 2 parts as I'm getting error message doing all in one go


Product code:Smart Hub 2

Serial number:+091301+1932007461

Firmware version:v0.16.02.08304-BT

Firmware updated:Fri Jan 31 12:20:57 2020

Board version:R01

GUI version:1.56 15_02_2019

DSL uptime:1 days,22 Hours38 Mins48 Secs

Data rate:754 Kbps / 15.418 Mbps

Maximum data rate:914 Kbps / 18.692 Mbps

Noise margin:6.4 / 6.4

Line attenuation:16.3 / 27.9

Signal attenuation:14.4 / 24.1

VLAN id:101

Upstream error control:Off

Downstream error control:Off

Data sent / received:2.3 GB Uploaded / 18.0 GB Downloaded


BT Wi-fi:Activated

2.4 GHz wireless network name:BT-77A6T5

2.4 GHz wireless channel:Smart (Channel11)

5 GHz wireless network name:BT-77A6T5

5 GHz wireless channel:Smart (Channel36)

Wireless security:WPA2 (Recommended)

Wireless mode:Mode 1


MAC address:F0:86:20:1F:D6:18

Software variant:-

Boot loader: 0.1.7-BT (Thu Nov 30 09:45:22 2017


BT Wholesale Broadband Performance Test



Broadband Speed Test Results








Download Speed (Mbps): 12.84

Upload Speed (Mbps) : 0.99

Ping Latency (ms): 21

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Aspiring Contributor
Message 4 of 4

Re: Desperate for solution to diminishing upload speed

second part

Exchange REDHILL is served by Cabinet 25


Featured ProductsDownstream Line Rate(Mbps)Upstream Line Rate(Mbps)Downstream Handback Threshold(Mbps)WBC FTTC Availability DateWBC SOGEA Availability DateLeft in Jumper  High Low High Low        Featured ProductsDownstream Line Rate(Mbps)Upstream Line Rate(Mbps)Downstream Range(Mbps)WBC FTTP Availability Date

ADSL ProductsDownstream Line Rate(Mbps)Upstream Line Rate(Mbps)Downstream Range(Mbps)Availability Date
Left in JumperObserved SpeedsVDSLADSLOther Offerings

Availability Date

Premise environmentStatus
VDSL Range A (Clean)24153.51.713.1AvailableAvailable-- 
VDSL Range B (Impacted)23.512. 
FTTP on Demand33030--Available---- 
WBC ADSL 2+Up to 6.5--5.5 to 7.5Available--Yes 
WBC ADSL 2+ Annex MUp to 6.5Up to 15.5 to 7.5Available--Yes 
ADSL MaxUp to 3.5--2.5 to 7Available---- 
WBC Fixed Rate2 ----Available--Yes 
Fixed Rate2 ----Available---- 
Max Observed Downstream Speed (Mbps)14.2711.51     
Max Upstream Observed Speed (Mbps)0.580.44     
Observed Date2019-12-182019-09-29     
VDSL Multicast------Available---- 
ADSL Multicast------Available---- 
Bridge TapN      
Last Test Date14-02-2020      





FTTP is not available.


For all ADSL and WBC Fibre to the Cabinet (VDSL or services, the stable line rate will be determined during the first 10 days of service usage.

This line is on a Market B Exchange.

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