21CN WBC status: Enabled

Hi

my exchange at new romney is 21cn wbc enabled.

Does this have any bearing on broadband services from this exchange?

Thanks

billzee

For a start have a read of this page from RobertoS's website.

Depends who you buy it from.

If LLU, then no. If not, you need to wait for your ISP to let you know. If BT, then probably yes.

In reply to a post by Apprentice:

For a start have a read of this page from RobertoS's website.

read that link thanks

cannot say I fully understand its implications as although not a complete novice a lot of that goes above my head

Which provider are you with currently?

Vivaciti surfwise

rang vivaciti today and they say any line over 4km from the exchange is unlikely to gain any advantage, may even suffer a loss of speed

no help there then

billzee

What are the current stats, their estimate of line length may be wrong.

You would gain upstream speeds, i.e. faster uploading pictures to facebook etc

The loss of speed can be mitigated, and should not normally happen.

The downstream attenuation of your line will give us an idea what sort of speed increase you might get from ADSL2+ providing the line isn't too long.

Getting the router stats:- http://www.kitz.co.uk/adsl/frogstats.php

In reply to a post by MrSaffron:

What are the current stats, their estimate of line length may be wrong.

You would gain upstream speeds, i.e. faster uploading pictures to facebook etc

The loss of speed can be mitigated, and should not normally happen.

Samknows estimate the line distance as 4.5km.

The stats are:

DSL Line (Wire Pair): Line 1 (inner pair)
Protocol: G.DMT Annex A
Downstream Rate: 992 kbps
Upstream Rate: 480 kbps
Channel: Interleaved
Current Noise Margin: 10.0 dB (Downstream) 11.0 dB (Upstream)
Current Attenuation: 63.0 dB (Downstream) 31.5 dB (Upstream)
Current Output Power: 16.0 dBm (Downstream) 12.5 dBm (Upstream)
DSLAM Vendor Information: Country: {0xB5} Vendor: {IFTN} Specific: {0xBE71}
PVC Info: 0/38

According to the kitz site the line is underperforming which is no surprise to me given its history.

So I guess when they upgrade my line its a matter of fingers crossed

Kitz figures does predict an improvement

I will have to wait and see.

Thanx for everyones input

Under performing possibly, but depends on why you have the 10dB noise margin.

If line has some instability this margin will mean less drop outs at the expense of speed.

WBC is not going to give you anything beyond upstream speed. On such a long line if there are noise (stability) issues then these can be exaggerated, and fixing them now would help.

In reply to a post by MrSaffron:

Under performing possibly, but depends on why you have the 10dB noise margin.

If line has some instability this margin will mean less drop outs at the expense of speed.

WBC is not going to give you anything beyond upstream speed. On such a long line if there are noise (stability) issues then these can be exaggerated, and fixing them now would help.

"Fixing them now", there's the rub

I've had engineers out on about 3/4 occassions annualy for the last 4 years.

About 1/2 of those times they find an issue and put it right till the next time, the other half they find nothing and try to charge me for the privilige.

I was on to the ceo's office the last time (january 2012) to get the charge lifted but I was told by them that if I called an engineer again and they found nothing I would be charged

Not sure what else I can do

Remember your 63.5dB attenuation may be an under-reporting, as that's the highest many routers can show, even if it is higher in fact.

Have you done all the normally recommended things like checking the ring wire; eliminating plug-in extension cables and so on?

What are the stats taken immediately after connecting using the Test Socket? (That's inside the master, not the normal visible master socket).

In reply to a post by RobertoS:

Remember your 63.5dB attenuation may be an under-reporting, as that's the highest many routers can show, even if it is higher in fact.

Have you done all the normally recommended things like checking the ring wire; eliminating plug-in extension cables and so on?

What are the stats taken immediately after connecting using the Test Socket? (That's inside the master, not the normal visible master socket).

Yup, done all that and have an adsl filtered NTE5 faceplate

These are my latest stats

DSL Line (Wire Pair): Line 1 (inner pair)
Protocol: G.DMT Annex A
Downstream Rate: 1184 kbps
Upstream Rate: 480 kbps
Channel: Interleaved
Current Noise Margin: 10.0 dB (Downstream) 11.0 dB (Upstream)
Current Attenuation: 63.0 dB (Downstream) 31.5 dB (Upstream)
Current Output Power: 16.2 dBm (Downstream) 12.5 dBm (Upstream)

Incidently was looking at freeola's site yesterday.

Their checker says my line is 6.2km from the exchange whereas samknows says 4.7km ( not 4.5 as I said in another thread)

Things aren't looking too hopeful for a speed increase. Was it better before you went to Surfwise, or is Surfwise better?

You are showing a 19% improvement on the first set of stats though! What did you do?

I assume a reconnection. Did you do that, or did it just happen? If you did it, what time of day? The stats immediately after the next one you do might tell us a tiny bit, but may not. Remember daytime reconnections are almost always fastest.

Sam knows is a straight line distance and freeola may be doing a by road distance.

In reply to a post by RobertoS:

Things aren't looking too hopeful for a speed increase. Was it better before you went to Surfwise, or is Surfwise better?

You are showing a 19% improvement on the first set of stats though! What did you do?

I assume a reconnection. Did you do that, or did it just happen? If you did it, what time of day? The stats immediately after the next one you do might tell us a tiny bit, but may not. Remember daytime reconnections are almost always fastest.

Some 3 years ago I think since vivaciti, it was an improvement if I remember rightly.

My line reconnects sometimes several times a day automatically and then perhaps is solid for a few days and weeks occasionaly, though lately its quite erratic.

Problem is I'm not always at the computer so it could have several reconnects without my knowledge.

I think it basically happens when I get the noise on the line which as said before is an ongoing but intermittant problem.