Latency has gone from 20ms to 35ms>

[#1]

Hello, this morning my internet got disconnected then reconnected and now my latency has gone from 20ms average to 35ms average. My internet has been stable for 20days up until now. I have noticed my interleaved depth has dramatically increased to 1779 download and fast path upload. As I do alot of online gaming this is quite important for me.
Any help would be greatly appreciated

[#2]

Moderators Note

This topic has been moved from ADSL Broadband to Fibre

[#3]

Hi @brownyy, thanks for getting in touch and I'm sorry to hear you've been seeing performance issues as of recent. When checking your account from this side I can see there current looks to be a profile banding meaning your missing out on a few Mbps with he download. I've adjusted this on the account correctly moving forwards however and you should see the speeds slightly increase.

Testing your connection from this side and seen by the graph below, we aren't detected anything out of place in regards to your connection or the the profile our suppliers side.

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	37.1 Mbps
Upstream Speed	10.0 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	764.1
Upstream Rate Assessment	Very Good
Downstream Rate Assessment	Low
Interference Pattern	Regular Interference Observed Daily
Service Impact	No Impact Observed
Interference Duration Longest Occurrence	;00:00to23:45
Interference Location	Customer Premise
Interference Observed In Days	14
Home Wiring Problem	Not Detected
Downstream Policing Discard Rate	0.0
Customer Traffic Level	Upstream and Downstream traffic detected
Technology	VDSL
DP Type	External
Profile Name	0.128M-40M Downstream, Interleaving Low - 0.128M-10M Upstream, Error Protection Off
Time Stamp	2021-08-18T12:15:00

Parameters	MIN	MAX	AVG
Down Stream Line Rate	37.0 Mbps	39.9 Mbps	39.9 Mbps
Up Stream Line Rate	9.9 Mbps	9.9 Mbps	9.9 Mbps
Up Time	785.0 Sec	900.0 Sec	899.8 Sec
Retrains	0.0	3.0	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	2021-08-31T11:46:32.401+01:00	2021-08-31T12:01:32.401+01:00
Ingress Code Violation	0	0
Egress Code Violation	0	0
Errored Seconds	0	0
Severely Errored Seconds	0	0
Unavailable Seconds	0	0

I'd maybe check then to see if the ping increase you're seeing is across multiple devices as this may help narrow down the cause of the issue further. Let us know how it goes.

 

[#4]

Thanks for having a look, I haven’t really been having problems with the speed it’s just the ping. Is there anyway you can take the error protection off the downstream? As I believe this is what’s causing the issue as the path mode is interleaved with a high depth.
Cheers

[#5]

Hi @brownyy, thanks for getting back to me. Looking at the profile for your line there currently doesn't look to be any error protection in place now any interleaving to help with errors.
The profile as seen below looks to e optimal for performance currently:

"0.128M-40M Downstream, Interleaving Low - 0.128M-10M Upstream, Error Protection Off"

In regards to the performance issues you've been seeing, is this occuring solely over wireless devices or on wired connections also?

[#6]

@brownyy  Your line has recently changed to a high depth of interleaving, note that the "interleaving low" profile in the GEA test has a timestamp of 18th August so is almost 2 weeks out of date. Unfortunately Plusnet have no control over line parameters on FTTC, it is all done by the Openreach automated DLM system. ☹️

@BD  The current line profile is definitely not interleaving low!

[#7]

@BD Hi please could you take another look as for some reason the speeds have gone even slower and the ping as increased? My average speed is now 29Mbps and my ping is 35> I have a feeling my line has been banded. Could you do another GEA test for me?

thanks

[#8]

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	37.1 Mbps
Upstream Speed	6.4 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	764.1
Upstream Rate Assessment	Very Good
Downstream Rate Assessment	Low
Interference Pattern	Regular Interference Observed Daily
Service Impact	No Impact Observed
Interference Duration Longest Occurrence	;00:00to23:45
Interference Location	Customer Premise
Interference Observed In Days	14
Home Wiring Problem	Not Detected
Downstream Policing Discard Rate	0.0
Customer Traffic Level	Upstream and Downstream traffic detected
Technology	VDSL
DP Type	External
Profile Name	0.128M-40M Downstream, Interleaving Low - 0.128M-10M Upstream, Error Protection Off
Time Stamp	2021-08-24T20:00:00

Parameters	MIN	MAX	AVG
Down Stream Line Rate	32.2 Mbps	39.9 Mbps	37.8 Mbps
Up Stream Line Rate	6.3 Mbps	9.9 Mbps	9.8 Mbps
Up Time	743.0 Sec	900.0 Sec	899.6 Sec
Retrains	0.0	3.0	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	2021-09-06T19:31:42.092+01:00	2021-09-06T19:46:42.092+01:00
Ingress Code Violation	0	0
Egress Code Violation	0	0
Errored Seconds	0	0
Severely Errored Seconds	0	0
Unavailable Seconds	0	0

[#9]

Hiya @brownyy, I'm sorry to hear you are having some issues.

I have provided a new GEA test for you. Your download is looking the same but the upload has decreased slightly.

[#10]

Thank you for that. Yes I have noticed my upload speed is only around 6Mbps which I’m not to bothered about.
when I run a wired speed test the max I get is 30Mbps. Is there anyway you can request a reset to the DLM? Hoping it will sort the interleaving out and take the downstream protection off to
Improve the ping like it did before.

Thanks

Cheers

[#11]

Further to my last message. I have ran another test this morning on BT` Wholesale although it won't let me go into "additional Diagnostics"  My speeds have degraded further. Now my download is around 7-10Mbps and upload 2-3Mbps ping 45.

Cheers

[#12]

Good morning @brownyy

Thanks a lot for reaching out and I'm really sorry to see that this issue is getting worse. Tests on the line this morning have picked up similar results seen by my colleagues, the line is syncing at 37.1 Mbps (apparently), and the speeds have recovered from a recent drop off. I've been unable to get into the router though to check out some wireless settings, are you using the Hub One?

Just a quick note about the Broadband profile as well, DLM automatically adjusts this based on line performance, so for instance, there were 4 dropouts on Saturday, which is why, I'm assuming anyway, DLM increased the level back up to high.

Unfortunately, unlike ADSL2+, we're unable to make any manual adjustments to the DLM profile, other than requesting a speed banding reset, as your profile shows though, it's not banded.

Current Profile: Downstream: 0.128M-40M with Interleaving (High). Upstream: 0.128M-10M with no error protection

Please get back to me if you are using the Hub One as there's a few things I'd like to explore before making any further suggestions.

[#13]

Hi yes I am using hub one

Cheers

[#14]

Thanks for letting me know @brownyy , can you please send me a PM with your router's serial number and MAC address?

[#15]

[Removed]

Thanks

Moderators Note: Personal information removed