Speed loss

[#1]

Over the past few days I've noticed that the speed of my fibre connection isn't what it used to be. I noticed that apps on my mobile such as Facebook have started to take a lot longer to load content; sometimes content loads instantly and at other times there can be a bit of a wait. I've run a few speed tests over an Ethernet connection and my download and upload speeds have dropped to about 50Mb and 6Mb, respectively, and haven't really gone back to 'normal' since where they used to be about 63.5Mb for download and 12Mb for upload. Would be grateful for any support you can provided.

[#2]

Hi @champ388,

I'm sorry to hear that your speed has dropped. I've tested your line and the test indicates that the line is currently syncing at 59.5mbps down, which is within the estimates of 42.7-61.9mbps. However, the upload speed is 6.3mbps, which is below the estimates of 10.5 - 16.3mbps.

GEA Test Detail
Circuit ID	NA	Service ID	BBEUXXXXXXXX

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	59.5 Mbps
Upstream Speed	6.3 Mbps
Appointment Required	N
Fault Report Advised	N
NTE Power Status	PowerOn
Voice Line Test Result	Pass
Bridge Tap	Detected
Radio Frequency Ingress	Not Detected
Repetitive Electrical Impulse Noise	Not Detected
Cross Talk	Not Detected
Estimated Line Length In Metres	601.7
Upstream Rate Assessment	Low
Downstream Rate Assessment	Very Good
Interference Pattern	Regular Interference Observed Daily
Service Impact	No Impact Observed
Interference Duration Longest Occurrence	From 11:00 to 15:45
Interference Location	Customer Premise
Interference Observed In Days	12
Home Wiring Problem	Not Detected
Downstream Policing Discard Rate	0.0
Customer Traffic Level	Upstream and Downstream Traffic Detected
Technology	VDSL
Profile Name	0.128M-80M Downstream 3dB, Retransmission High - 0.128M-20M Upstream, Error Protection Off
Time Stamp	2019-02-27T18:00:00

Parameters	MIN	MAX	AVG
Down Stream Line Rate	62.1 Mbps	71.5 Mbps	64.8 Mbps
Up Stream Line Rate	3.5 Mbps	13.1 Mbps	7.8 Mbps
Up Time	865.0 Sec	900.0 Sec	899.9 Sec
Retrains	0.0	1.0	0.0

Current and Last 15 Minute Bin Performance
Parameters	Last Traffic Count(Upto 15 mins)	Current Traffic Count(Upto 15 mins)
Start Time Stamp	2019-03-10T08:35:45Z	2019-03-10T08:50:45Z
Ingress Code Violation	0	0
Egress Code Violation	0	0
Errored Seconds	0	0
Severely Errored Seconds	0	0
Unavailable Seconds	0	0

The test hasn't picked up the cause of the low upload speed, so we'll need to do some troubleshooting to try and narrow this down.

I'd recommend starting with basic checks here. If these checks don't resolve the problem, the next step would be to connect your router directly to the test socket, which is under the faceplate of your master socket and seeing if the connection stabilises This rules out internal wiring, face plates and extension sockets as being the cause. Please see the guide here for instructions on how to connect to the test socket.

[#3]

Thanks for getting in touch. I've tried the basic checks and connecting the router (BT Smart Hub) directly to the test socket but unfortunately this didn't provide any improvement. I also tried connecting the Plusnet router (provided when I joined) directly to the test socket but that didn't provide any improvement, either.

As my upload speed has dropped below the estimate, surely this coincides with the drop in download speed?

Out of curiosity, is my issue the same as the one reported on this thread? https://community.plus.net/t5/Fibre-Broadband/Large-drop-in-speed-on-80-20-Fibre-in-past-week-or-so/...

[#4]

Just running speed tests won't show immediate improvements due to the BTW/PN profiles. However if you log into the router and take note of the sync speeds and max attainable speeds that will give you a better idea if it's an internal wiring issue. But even before that, how is your phone line, dial 17070 option 2 - from a corded phone - does it give your number - is the line quiet?

[#5]

---

@Mustrum wrote:
Just running speed tests won't show immediate improvements due to the BTW/PN profiles. However if you log into the router and take note of the sync speeds and max attainable speeds that will give you a better idea if it's an internal wiring issue. But even before that, how is your phone line, dial 17070 option 2 - from a corded phone - does it give your number - is the line quiet?

---

I wasn't aware but thanks for pointing that out. I've tried connecting to the test socket again and took a note of the stats you suggested looking for, and a few more just in case they help:

• Data rate: 6.75 Mbps / 63.70 Mbps
• Maximum data rate: 6751 / 65571
• Noise margin: 6.1 dB / 3.2 dB
• Line attenuation: 19.5 dB

[#6]

How do they compare when you are in the normal position?

Comparing them to the GEA test there is a definite improvement.

[#7]

Stats with router plugged into normal socket:

• Data rate: 6.45 Mbps / 63.96 Mbps
• Maximum data rate: 6460 / 66390
• Noise margin: 6.2 dB / 3.3 dB
• Line attenuation: 19.5 dB

No changes have been made to the internal wiring and I've not had any issues with speed drops until recently.

[#8]

Openreach recently carried out some work in the cabinet I'm connected to, and then an unknown contractor (no branding on the van) also did some work in the same cabinet. Seems to be around the time my speeds dropped. Thought it was worth mentioning just in case it's linked to the problem.

[#9]

Thanks for getting back to us.

As my upload speed has dropped below the estimate, surely this coincides with the drop in download speed?

It's possible though our tests aren't showing the cause for that, so we'd need to book an engineer visit for further investigation. I'd recommend raising a fault to us at http://faults.plus.net so we can arrange this. Feel free to let us know over here once you've reported the fault and we'll be happy to pick it up as soon as we can from over here.

[#10]

I ran a speed test when I got home this evening and things are looking a lot better - about 60Mb down and 12Mb up. Stats from the router plugged into the main socket:

Data rate: 12.99 Mbps / 70.83 Mbps
Maximum data rate: 13008 / 71790
Noise margin: 6 dB / 2.9 dB
Line attenuation: 19.4 dB

Happy to raise a fault if you think it's still necessary but also happy to monitor things over the next few days.

[#11]

Hi @champ388 

Thanks for the update. 

Completely up to you regarding engineer VS monitor. 

What do you want to do? 

Thanks,

MoR

[#12]

As my speeds are pretty much back to what they were previously, I'm inclined to monitor things over the next few days. I can't really justify engineer involvement now, even though I would like to know what happened and why. I'll see how things go over the next few days and then come back to you with an update. Hopefully there won't be a repeat blip. But really appreciate the offer of requesting engineer involvement.

[#13]

Thanks for getting back to us.

If the issue returns let us know and we'll re-open the investigation

[#14]

Hi folks. I've monitored things over the past few days and my download speeds haven't returned to normal. Any chance this issue could be looked into?

[#15]

Sorry to hear this @champ388, 

I've ran a GEA test on your circuit and can see that your DL is currently sat at 66.2Mbps. 

Can you let us know what you are getting throughput wise on a wired connection? 

Thanks,

MoR