Pagina 1 van 1
Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 08 mei 2018, 23:23
door sociableorg
Hi Belgacom/Proximus gurus - I just moved houses and got connected with a DSL connection. I have an old Sagemcom CS50001 from my old place. The technician connected the modem and looks like internet connectivity is achieved. However the DL and UL speeds are pretty bad. I suspect some bad internal wiring resulting in lots of dropped packets (lossy DSL line). Is there a way to troubleshoot if the issue is inside my apartment? Thanks for any pointers!
Here is my output from the Sagem tool.
Code: Selecteer alles
B-Box 3 Sagem Tool v0.13.0
--------------------------
Device: B-Box 3 Sagem
Downstream current bit rate: 2,758 kbps
Upstream current bit rate: 3,046 kbps
Downstream max bit rate: 10,282 kbps
Upstream max bit rate: 3,266 kbps
Downstream attenuation: 44.4 dB
Downstream noise margin: 10.4 dB
Upstream noise margin: 6.5 dB
Vectoring down: no
Vectoring up: no
Modem vectoring compatible: yes
ROP vectoring compatible: no
DSL standard: VDSL2 Annex B
DSL profile: 8d
Estimated distance: 861 m
Proximus profile name: unknown
Proximus DLM profile: unknown
Proximus repair profile: unknown
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 06:57
door fvhbrugge
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 07:53
door Sinna
You're using a non-approved DSL modem. Chances are high that you get better results (if the URL posted by fvhbrugge indicates higher speeds are achievable). If you have a Proximus subscription, you should get a BBox3 'free-of-charge'.
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 08:32
door sociableorg
Thanks for the quick replies. I do have the BBOX-3 (CS50001 is a BBOX-3 AFAIK). I have figured out part of the problem I think. I was using an 'ethernet over powerline' adapter in an electrical socket that was right next to the the DSL/phone jack (RJ11 socket). To further complicate things, I had the power cable from the DSL modem going into the same electrical socket. There seems to be some interference introduced. I unplugged the 'ethernet over powerline' power adapter and now the attenuation and DL/UL speeds seem in a normal range. Thanks once again.
Code: Selecteer alles
B-Box 3 Sagem Tool v0.13.0
--------------------------
Device: B-Box 3 Sagem
Downstream current bit rate: 16,559 kbps
Upstream current bit rate: 3,046 kbps
Downstream max bit rate: 24,425 kbps
Upstream max bit rate: 4,586 kbps
Downstream attenuation: 17.6 dB
Downstream noise margin: 10.6 dB
Upstream noise margin: 9.5 dB
Vectoring down: no
Vectoring up: no
Modem vectoring compatible: yes
ROP vectoring compatible: no
DSL standard: VDSL2 Annex B
DSL profile: 8d
Estimated distance: 583 m
Proximus profile name: 16,5/3
Proximus DLM profile: yes
Proximus repair profile: no
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 08:53
door raf1
sociableorg schreef:Is there a way to troubleshoot if the issue is inside my apartment?
Downstream attenuation is too high to get a better download speed.
First check the attainable speeds at your address:
http://linetest.be and
https://proximus.be/internetspeed
If attainable speed are higher than what you got, you should check your modem and your indoor wiring:
- connect your modem always directly to the Proximus NTP2007-socket
- use a Bbox3, FRITZ!Box 7360 v2 or FRITZ!Box 7490 to get the highest possible speeds
- check downstream and upstream attenuation with another modem
- disconnect and insulate unused wires from the indoor telephony/dsl network
- unfix connections from the Proximus NTP2007-socket, sand the copper ends and tighten the connections again
and NEVER USE POWERLINE ADAPTERS for internal network, always use UTP cat 5e cabling or Wifi
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 10:28
door Sinna
sociableorg schreef:I do have the BBOX-3 (CS50001 is a BBOX-3 AFAIK)
My bad, I based my assumption on slightly different pictures. You're correct.
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 11:27
door sociableorg
raf1 schreef:sociableorg schreef:Is there a way to troubleshoot if the issue is inside my apartment?
Downstream attenuation is too high to get a better download speed.
First check the attainable speeds at your address:
http://linetest.be and
https://proximus.be/internetspeed
If attainable speed are higher than what you got, you should check your modem and your indoor wiring:
- connect your modem always directly to the Proximus NTP2007-socket
- use a Bbox3, FRITZ!Box 7360 v2 or FRITZ!Box 7490 to get the highest possible speeds
- check downstream and upstream attenuation with another modem
- disconnect and insulate unused wires from the indoor telephony/dsl network
- unfix connections from the Proximus NTP2007-socket, sand the copper ends and tighten the connections again
and NEVER USE POWERLINE ADAPTERS for internal network, always use UTP cat 5e cabling or Wifi
Thanks for the detailed reply. I am trying to avoid using these powerline adapters, but running CAT5e all over the apartment seems really cumbersome. I am going to try and position the BBOX-3 for better Wifi reach.
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 11:40
door MClaeys
A decent powerline adapter shouldn't give any issues though. I've worked years at home with the modem plugged into a powerline adapter that was plugged in within a few cm of the NTP2007, never had any issues with it, I got the speeds that were expected at my place. Mine were from Devolo.
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 12:08
door raf1
MClaeys schreef:A decent powerline adapter shouldn't give any issues though.
That's only true if you have a decent electrical installation in your building with proper wiring and grounding.
Re: Low DSL speeds (proximus) at new place *sorry about the English language post*
Geplaatst: 09 mei 2018, 12:18
door wied
For flat/appartment locations the use of Proximus wifi bridges is probably more stable/reliable...