This topic

Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

jsamuosu — Sun, 13 Jun 2021 09:47:06 GMT

I signed up for BT unlimited fiber 1 broadband in 2014 at which time my internet speed was quoted as:

"your download speed will be between 39Mb and 40Mb."
"your upload speed will be between 9.0Mb and 10.0Mb. "

I have never renewed on a new package so am still on this package, I would have expected in 7 years for the infrastructure/speeds to have actually improved but it seems instead of that, you (you being BT) are limiting my upload speed to 7.2Mbps, this is directly from my VDSL2 modem:

"Line rate (kbit/s) 42858 7200"

According to the line quality, there should be no reason that my upload speed is being limited to 7.2Mbps because the maximum rate with the line quality is over double that, again, directly from my VDSL2 modem:

"Attainable rate (kbit/s) 54856 17520"

So can you please un-limit my connection from the 7.2Mbps upload limit which is lower than the speed I was promised 7 years ago - this is a limit you are applying exchange side?

It would also be nice if you didn't email from non-existent domains when signing up for this service, I had to disable a mail server rule to receive your sign up email: "Message from IP address 34.246.32.154, sender <no-reply@community-mail.bt.com> rejected: sender domain does not exist"

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

imjolly — Sun, 13 Jun 2021 09:53:01 GMT

welcome to the BT community forum where customers help customers and only BT employees are the forum mods

in order for the forum members to help please can you post the stats from your router (if hub enter 192.168.1.254 in your browser) and if HH5 then go to troubleshooting then helpdesk and if HH6/SH2 then advanced settings then technical log information .

Have you tried the quiet line test? - dial 17070 option 2 - should hear nothing - best done with a corded phone. if cordless phone you may hear a 'dull hum' which is normal

enter your phone number and post results remember to delete number https://www.broadbandchecker.btwholesale.com/#/ADSL

It is normal for speeds to decline especially over 7 years as more people are added to your cabinet and your line suffers from crosstalk. I assume you have renewed your contract with BT in these 7 years otherwise you are probably paying standard terms instead on negotiating a discount for a fixed term contract

Someone may then be able to offer help/assistance/suggestions to your problem

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

jsamuosu — Sun, 13 Jun 2021 10:07:23 GMT

Hi imjolly,

I have not tried the phone line test, at present I am at another premesis so cannot perform that but there have been no issues with the phone line.

Result from the broadband check:

Details from modem:

Mode	VDSL2
Traffic type	PTM
DSL synchronization status	Up

	Downstream	Upstream
Attainable rate (kbit/s)	55088	17499
SNR margin (dB)	6.3	12.6
Line attenuation (dB)	18.6	0
Output power (dBmV)	6.6	6.6

	Path 0
	Downstream	Upstream
Line rate (kbit/s)	42858	7200
CRC errors	6	0
FEC errors	3	0
HEC errors	0	0

(This is with 5 days uptime of the modem). Package has not been renewed in that time, I will probably be doing that in the near future however

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

imjolly — Sun, 13 Jun 2021 10:52:56 GMT

when you say 5 days uptime of the modem is your internet connection time the same as it is possible for your internet connection to be dropping even though modem is connected?

can you check for line noise dial 17070 option 2 should be silent and best with corded phone

from dslchecker results I would expect connection speed to be better

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

jsamuosu — Sun, 13 Jun 2021 12:05:04 GMT

I turned modem off for a few minutes and back on 5 days ago to see if speed would improve, which it did not, from the modem logs service has dropped on the following:

2021-6-1 2:10:37
2021-5-18 1:27:24
2020-9-12 8:48:46 - this was for a few hours
2020-8-30 11:5:3 - this was for 30 minutes

So connection dropping does not seem to be a problem

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

imjolly — Sun, 13 Jun 2021 12:43:01 GMT

can you try quiet line test when you can and post back

does your router/modem actually show internet connection time or just system uptime - many tplink only show system uptime which is not the same

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

licquorice — Sun, 13 Jun 2021 12:45:52 GMT

Out of interest, have you tried connecting a BT hub rather than your third party modem to see if that improves things.

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

jsamuosu — Sun, 13 Jun 2021 12:56:49 GMT

This is with the official BT huawei echolife HG612 gateway, I do not use wifi nor want tr069 running on my network and require stability for server (which the homehub abysmally fails at) so I would not use a BT homehub. There is nothing wrong with the modem

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

jsamuosu — Sun, 13 Jun 2021 12:59:55 GMT

It shows both, currently:

System up time

5 days 7 hours 14 minutes 29 seconds

ptm1.101

Connected

458013

PTM

458013 seconds, which is 5.3 days network connectivity time

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

licquorice — Sun, 13 Jun 2021 13:52:52 GMT

@jsamuosu wrote:

There is nothing wrong with the modem

Unless you substitute it, you do not know that.

Your choice, I'm not asking you to 'Use' the hub, just substitute it to verify the problem is not with the modem. Little point in asking for advice if you are not prepared to try suggestions.

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

jsamuosu — Sun, 13 Jun 2021 14:47:47 GMT

For what technical reason would the modem be at fault? The filters are in the phone socket itself, the crystal oscillators inside the modem aren't going to have degraded to a point whereby they're too out of specification to correctly syncronise with the upper DSL frequencies with a 7 year use.

Switching between modems is a very big no no, I previously had to have a BT engineer called out because of slow speeds for that exact reason (switching between a HG612 and HH4), they had to go to the local exchange to reset the port because the speed was limited to about 2Mbps - the engineer said that when errors are detected e.g. switching modems, the equipment exchange side registers this as a fault on the line and reduces the encoding to prevent signal degradation, it's been a few years since I studied broadband networks but an example would be from allowing 64-QAM even with some errors, to forcing 16-QAM as the maximum, or whatever encodings are used. This was a different connection and from memory after the port reset speeds went to about 30Mbps or thereabouts and I discontinued using the HH entirely

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

imjolly — Sun, 13 Jun 2021 14:55:50 GMT

as @licquorice posted the choice is yours.. however if you used a HH4 then that would not work alone on vdsl so must have used a modem in addition or it was not hh4

switching routers will not cause a problem with the DLM only repeated switching in short space of time would be a problem as it would be seen as unstable and DLM would take action

Re: Unlimiter fiber 1 (from 2014 sign up) upload speed is being limited to below minimum

jsamuosu — Mon, 21 Jun 2021 09:09:23 GMT

Did come back to re-check the speeds end of last week but there was a service fault for the whole area and no connectivity at the weekend. Seems to be back up now (on the same HG612 modem) with the upload speed boosted, all fixed! Thanks

	Downstream	Upstream
Line rate (kbit/s)	48998	15000