cancel
Showing results for 
Search instead for 
Did you mean: 

New router won't sync in my house

Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: New router won't sync in my house

Quote from: jelv
Just how do you deduce that he is on 21CN from those stats?

Because neither 7246 or 828 are 20CN sync figures - unless something major has gone wrong, but even so when that has happened in my experience I've only seen strange US figures, DS has always been the exact values for 20CN Wink
jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
Fixes: 10
Registered: ‎10-04-2007

Re: New router won't sync in my house

What are "20CN sync figures"? Do you have a link?
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
mobby
Dabbler
Posts: 16
Registered: ‎29-08-2014

Re: New router won't sync in my house

Quote from: jelv
@mobby Which exchange are you on?

It's the Ashford, Kent exchange.
jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
Fixes: 10
Registered: ‎10-04-2007

Re: New router won't sync in my house

I wonder if the service is set as ADSL1?
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: New router won't sync in my house

Whilst that question is worth asking to be certain (because we can't be certain that there isn't a fault), again the speeds don't fit, DS is always exactly as 20CN and Upstream is 448 or 832 depending on whether it uncapped on 21CN.
I'm really surprised, I thought you knew 20CN like the back of your hand being on it. How many links would you like?
See 20CN in this Library article those are 20CN speeds and it does mention they increment in 32kbps steps.
Also 20CN adsl1 again.
I don't recall if the US can be any old figure upto 832 when there's a fault on 20CN or whether it increments in any particular value, I'd have to try and find any figures I saved when I had a problem, if I find it, I'll let you know.
jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
Fixes: 10
Registered: ‎10-04-2007

Re: New router won't sync in my house

You only normally see an upstream of 448 or 832 because usually there's plenty of noise margin to spare. The sync process is the same as downstream however, there is a target noise margin and it syncs at the fastest speed possible while keeping at or above the target so there is no reason why you won't see other upstream sync speeds.
Why are you assuming that the 21CN equipment uses the same 32kbps steps as 20CN when configured as ADSL1 when ADSL2 and ADSL2+ have no such limitation? That seems very unlikely to me.
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: New router won't sync in my house

Because it does and all the evidence I've seen from any stats that have ever been posted where the exchange end has been configured to ADSL1 on 21CN says so, and further more I thought one of those links also made that clear. Maybe I'll have to find some more links later.
Regarding the US you are getting your knickers in a twist, I was referring to 20CN.
On 21CN, you can see other speeds if it is NOT configured to ADSL1. If it's ADSL1 on 21CN, it's 448 or 832 depending on whether it's capped or not.
jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
Fixes: 10
Registered: ‎10-04-2007

Re: New router won't sync in my house

I was referring to 20CN as well. If your upstream attenuation was such that you couldn't sync at more than 750kbps there's no reason why you can't still be on Max Premium and benefit from faster than 448 speeds. And what about really long lines? Are you saying they will always sync at 448 even if that results in a very low (or negative) noise margin? That's just ridiculous!
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
Fixes: 10
Registered: ‎10-04-2007

Re: New router won't sync in my house

Perhaps also you could comment on this post:
Quote from: HughA
Interesting development this morning.  My line resynced, presumably as a result of the upstream being uncapped as requested, and the result was totally unexpected.  Upstream sync has DROPPED to 352Kbps and downstream sync has INCREASED to 3488Kbps.  Downstream SNR margin has dropped from 9dB to 6.8dB. Still on ADSL1 as expected. The bit loading graph on RouterStats shows a loading of 31 bits on tone 32, that can't be right can it?  Can anyone explain whats happened here?
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: New router won't sync in my house

No I couldn't, you should have PM's me with that.
jelv you have taken this posters thread right off-topic. As you well know ADSL1 on 21CN was discussed the other day here if you have any further evidence on that subject post it over there, I'm happy to be proven wrong, with FACTS not speculation, and read the 2 BT specs referred by ejs in that thread as well.
@mobby
Apologies, ignore the last few posts from the 2 of us, back on topic, please note reply #13. Don't forget "Graceful" disconnects where needed, and what's the situation with the firmware?
mobby
Dabbler
Posts: 16
Registered: ‎29-08-2014

Re: New router won't sync in my house

Point noted about the need for graceful disconnects - thanks for the warning. As for the firmware, I updated it to 3.0.0.4.376_2187 which I believe is the latest.
Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: New router won't sync in my house

It's a good few hours since you posted stats, what are the current stats?
Could you also run the BTw Performance test (DON'T REBOOT, ignore the red preamble except make sure no other programs are using the Internet) and at the end of the first run, click the Further Diagnostics button, enter just your Phone number and Run the Further Diagnostics Test.
Do a Copy and Paste of the results and post here (no need to grab an image).
jelv
Seasoned Hero
Posts: 26,785
Thanks: 971
Fixes: 10
Registered: ‎10-04-2007

Re: New router won't sync in my house

How about a comment on a Max Premium line syncing at 672 upstream? http://forum.kitz.co.uk/index.php?topic=14865.0
jelv (a.k.a Spoon Whittler)
   Why I have left Plusnet (warning: long post!)   
Broadband: Andrews & Arnold Home::1 (FTTC 80/20)
Line rental: Pulse 8 Home Line Rental (£14.40/month)
Mobile: iD mobile (£4/month)
Anotherone
Champion
Posts: 19,107
Thanks: 457
Fixes: 21
Registered: ‎31-08-2007

Re: New router won't sync in my house

Off Topic.
mobby
Dabbler
Posts: 16
Registered: ‎29-08-2014

Re: New router won't sync in my house

Quote from: Anotherone
It's a good few hours since you posted stats, what are the current stats?
Could you also run the BTw Performance test (DON'T REBOOT, ignore the red preamble except make sure no other programs are using the Internet) and at the end of the first run, click the Further Diagnostics button, enter just your Phone number and Run the Further Diagnostics Test.
Do a Copy and Paste of the results and post here (no need to grab an image).

SNR Down: 13.5 dB
SNR Up: 7.0 dB
Line Attenuation Down: 51.5 dB
Line Attenuation Up: 23.5 dB
Path Mode: Interleaved
Data Rate Down: 4928 kbps
Data Rate Up: 800 kbps
MAX Rate Down: 5152
MAX Rate Up: 912
Best Effort Test
Download speedachieved during the test was - 4.34 Mbps
For your connection, the acceptable range of speeds is 1.2 Mbps-4 Mbps.
IP Profile for your line is - 4.35 Mbps
Upstream Test
Upload speed achieved during the test was - 0.68Mbps
Additional Information:
Upstream Rate IP profile on your line is - 0.83 Mbps