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Speed is low - downstream attenuation figure implies I can go faster....

Froug
Grafter
Posts: 109
Registered: 21-03-2013

Speed is low - downstream attenuation figure implies I can go faster....

Hello PN admins,
The 33db attenuation on my downstream implies I should be able to get ~7.5Mbits (at least according to http://www.speedguide.net/dsl_speed_calc.php). I know that would be in an ideal world, but I'm only getting ~4.5Mbits. Any chance you can improve things for me? My full stats are:
Bandwidth (Up/Down) [kbps/kbps]: 832 / 4.416
Data Transferred (Sent/Received) [GB/GB]: 1,99 / 1,70
Output Power (Up/Down) [dBm]: 12,3 / 19,9
Line Attenuation (Up/Down) [dB]: 21,5 / 33,0
SN Margin (Up/Down) [dB]: 14,0 / 16,4
Thanks,
Froug
7 REPLIES
Plusnet Alumni (retired) orbrey
Plusnet Alumni (retired)
Posts: 10,540
Registered: 18-07-2007

Re: Speed is low - downstream attenuation figure implies I can go faster....

Hi Froug,
Looking at the margins there (especially the current SNR) there's definitely some room for improvement. My only reservation is with your other issue, the packet loss when the profiles aren't set correctly - we could certainly go ahead with an SNR reset and let the line retrain, but I wonder what impact it'd have on the packet loss issue.
Froug
Grafter
Posts: 109
Registered: 21-03-2013

Re: Speed is low - downstream attenuation figure implies I can go faster....

Thanks Matt, but I thought my latency issues were to do with traffic shaping, not packet loss?
Community Veteran
Posts: 4,875
Thanks: 126
Fixes: 24
Registered: 14-07-2009

Re: Speed is low - downstream attenuation figure implies I can go faster....

Quote from: Froug
Any chance you can improve things for me?

You might well be able to improve things for yourself if you are prepared to be proactive.  The first thing to do is to connect your router to the Test Socket, which is the socket revealed if you unscrew and pull-out the faceplae from your Master Socket.  Then look again at the router stats.  If anything has changed then there might be an opportunity to improve your speed yourself.  Post back. 
Plusnet Alumni (retired) orbrey
Plusnet Alumni (retired)
Posts: 10,540
Registered: 18-07-2007

Re: Speed is low - downstream attenuation figure implies I can go faster....

Quote from: Froug
Thanks Matt, but I thought my latency issues were to do with traffic shaping, not packet loss?

Understood, but I wanted to make sure you were happy to go ahead with this given those issues before I placed the order. If you are, I'll get it done Smiley
Froug
Grafter
Posts: 109
Registered: 21-03-2013

Re: Speed is low - downstream attenuation figure implies I can go faster....

Thanks Matt - I do wish to proceed, but one clarification before we start.....will the SNR reset (and subsequent retraining) cause the (for want of a better word) 'standard' profile to reinstate, and I'll have to ask for the 'speed' profile to be reapplied?
Plusnet Alumni (retired) chrispurvey
Plusnet Alumni (retired)
Posts: 5,369
Fixes: 1
Registered: 13-07-2012

Re: Speed is low - downstream attenuation figure implies I can go faster....

I've placed the SNR reset and I'll keep my eye on this and match your speed profile once the SNR reset has completed.
Froug
Grafter
Posts: 109
Registered: 21-03-2013

Re: Speed is low - downstream attenuation figure implies I can go faster....

Thanks very much Chris - great service from PN, as always.