This topic

Broadband speed dropped from 49Mbps to 38Mbps over the last few months

phillymoran — Sun, 28 Sep 2025 09:00:38 GMT

Hi all,

I have noticed that when i look on the Hub Manager that my speed has dropped from 49Mbps to 44Mbps ??

When i do a speed check its actually coming back as around 37Mbps ???

My connection has always been around 49Mbps for well over a year and now its dropping lower.

Originally when i took the contract out it was showing 55Mbps then several weeks later it dropped to 49Mbps ( more of a stable line perhaps)

I am getting concerned that BT are lowering line speeds.

Any ideas please ????

Thanks

Re: Broadband speed dropped from 49Mbps to 38Mbps over the last few months

Kimberlin — Sun, 28 Sep 2025 09:06:00 GMT

Try a hub reboot and see what happens. It might clear the cache and help reset things.

Re: Broadband speed dropped from 49Mbps to 38Mbps over the last few months

phillymoran — Sun, 28 Sep 2025 09:12:06 GMT

Hi,

Tried a hub reboot probably once every two weeks over the last few months but its still the same.

Hub is a new hub, master socket is decent one, all cables are in good condition.

Any other ideas ??

Thanks.

Re: Broadband speed dropped from 49Mbps to 38Mbps over the last few months

imjolly — Sun, 28 Sep 2025 09:19:18 GMT

if you are not on digital voice and have home phone try dialling 17070 option 2 should be silent

can you post the stats from your hub enter 192.168.1.254 in your browser HH6/SH2 then advanced settings then technical log information .

have you noticed ant drops in connection apart from your 2 weekly restarts

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

phillymoran — Sun, 28 Sep 2025 12:22:32 GMT

Home >
Advanced settings >
Technical log
Information
Event log
This is a list of your Hub settings and current statistics.
Product code:
Hub
Serial number:
+112133-2230001572
Firmware version
v0.45.00.08028-BT
Firmware updated:
Sun Apr 20 02:16:20 2025
R01
Board version:
GUI version:
1.80 11_07_2023
DSL uptime:
0 days, 04 Hours29 Mins46 Secs
Datarate:
9.995 Mbps/44 Mbps
Maximum data rate:
16.030 Mbps/57.231 Mbps
Full Fibre (FTTP) Mode:
Off
Noise margin:
10.1/10.4
Line attenuation:
5.9/18.6
Signal attenuation:
6.0/17.9
VLAN id:
101
Upstream error control:
off
Downstream error control:
Off
Data sent/received:
696.8 MB Uploaded/19.5 GB Downloaded
Broadband username:
bthomehub@btbroadband.com
Public Wi-fi status:
Not active
2.4 GHz wireless network name:
BT-No.19
2.4 GHz wireless channel:
Smart (Channel 1)
5 GHz wireless network name:
BT-No.19
5 GHz wireless channel:
Smart (Channel 36)
Wireless security:
WPA2
Wireless mode:
Mode 1
On
Firewall:
MAC address:
AB:A2:37:DFSA:65
Software variant:
Bootloader:
0.1.7-BT (Thu Nov 30 09:45:22 2017)
Export
Back

Hope this helps !!

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

imjolly — Sun, 28 Sep 2025 13:19:26 GMT

from the stats the connection up time is only 4hrs is that due to manual reset or hub dropping internet connection? from the stats your noise margin is is very high at 10.4db whereas normal should be about 6db. if you can get down to 6db then that will give speed increase you are looking for.

however it does look like you possibly have more drops in connections that you think and this has resulted in your connection being in a banded profile. you need a stable connection without any drops or resets and the DLM will reduce noise margin and increase speed

did you check your line for line noise?

https://community.plus.net/t5/Library/FTTC-DLM-What-it-is-How-it-works/ba-p/1322799

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

phillymoran — Sun, 28 Sep 2025 15:24:44 GMT

Sorry, its broadband only no phone connected.

Therefore i cannot check ??

Thanks.

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

iniltous — Sun, 28 Sep 2025 16:11:14 GMT

A week or two ago , not having any broadband performance issues , in a moment of boredom I had a look at router stats , being pretty close to the ‘cabinet’ , my normal sync is 80Mb , throughput 77-78Mb …the stats showed around 40Mb sync and a speed test around 37-38Mb , I had no real world issues , this was nothing more than idle curiosity, but obviously thought that’s not right .

I logged onto ‘My BT’ to do a ‘test’ , the test came back saying something along the lines of ‘we have detected a fault outside your property ‘ , the fix date in 3 days , I recalled seeing a tech working at the cabinet earlier that day and suspected they had inadvertently disturbed my connection.

The very next morning , a contractor van (Kelly’s or Quinn’s working for Openreach) pulls up outside , and knocks on the door ….connects their tester , indicating a problem at 128 meters , the distance to the cab and leaves to visit the cab , returns 15 mins later , dis 1 leg in the cab , reconnected ….swapped out my 30 year old NTE5 for a new one and confirmed sync back at 80 Mb .

You can do a test yourself or call ‘faults’ and they can perform a test either way if it indicates a problem (as mine did ) Openreach are advised and if my experience was anything to go by, it’s a pretty quick response.

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

imjolly — Sun, 28 Sep 2025 16:34:39 GMT

As you have no phone then check the hub event log and look for drops in connection and restarts your stats suggest it is often

Why do you restart hub every 2 weeks?

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

phillymoran — Sun, 28 Sep 2025 22:25:01 GMT

I restart my hub every 2 weeks hoping it may get back to 49Mbps like it was on the old ays.

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

imjolly — Mon, 29 Sep 2025 07:30:10 GMT

sorry but that is not helping you need a stable connection with no resets and hopefully no drops in connection before your speed will start to improve

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

phillymoran — Tue, 30 Sep 2025 16:01:12 GMT

I was restarting my hub to hopefully get a faster connection.

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

phillymoran — Tue, 30 Sep 2025 16:02:15 GMT

Okay, i will not restart it again.

Thanks.

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

imjolly — Tue, 30 Sep 2025 16:03:39 GMT

As I posted already that won't help you improve your connection speed it is more important to have a stable connection with no resets

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

iniltous — Tue, 30 Sep 2025 17:38:27 GMT

It’s unclear why you are reluctant to test your line via your ‘My BT’ online account (or call and let BT test it ) , if the test result indicates a problem externally, Openreach are tasked with fixing it …if a problem exists outside your control, you switching off and on occasionally is pretty futile

Re: Broadband spropped from 49Mbps to 38Mbps over the last few months

licquorice — Wed, 01 Oct 2025 10:26:43 GMT

Your line has been banded by DLM (44M is one of the bands). Until DLM regards your line as stable you won't see any improvement.