21CN automatic upgrade

Just got an email from my ISP saying BT have activated 21CN on my exchange.

Ive noticed that my ISP (adsl24) are now processing an order for me to be switched over to 21CN on the 1st Feb. Is this done automatically as i never asked to be switched to it?

Any other differences i should be aware of? Im not bothered about adsl+ atm

The ISP will have made the choice to move you onto the 21CN platform. So not totally automatic.

Upstream speeds should improve. If downstream attenuation is under 50dB, then generally a welcome boost to download speeds. Better handling of the IP Profile too.

Yea when i said automatic, meant its not something i personally have to ask for?

Will upstream improve even tho i plan to stay on standard adsl and not upgrade to adsl+?

Define stay on ADSL? Do you mean remain on an up to 8Meg package?

If so, then this may switch to being delivered via ADSL2+, since that is the default mode for the hardware you will be connected to. Profiles are available to force down speeds to emulate ADSL

It is probable they mean they are moving you to ADSL2+, or did they say they wouldn't be doing that automatically, just moving your connection to the 21CN kit?

Does anything worry you about ADSL2+?

Email says "Once this upgrade has completed you will be able to regrade your service to the ADSL2+ frequency, potentially offering higher speeds at no extra cost."

Only worry i have with adsl2+ is stabilty. Ive had allsorts of problems with the 8mbit adsl, and just got it stable enough now. Dont want to mess with it and make it unstable again

In reply to a post by bobble_bob:

Yea when i said automatic, meant its not something i personally have to ask for?

Will upstream improve even tho i plan to stay on standard adsl and not upgrade to adsl+?

Might depend on the ISP. My Dad is with BT and he was moved onto ADSL2+ without asking. One day he was syncing at 8Mb/s now he's at 15Mb/s.

Nice. Whats stablilty like on adsl2+ compared to adsl2?

All depends on your line

ADSL Link Downstream Upstream
Connection Speed 7616 kbps 448 kbps
Line Attenuation 32.0 db 16.5 db
Noise Margin 7.0 db 25 db

There my line stats. Taken alot of messing around to get a stable line syncing at those speeds tho, hence im wary of upping the speed and making it unstable

32dB attenuation should sync at that speed with very little problem, unless there is local wiring issues.

http://www.farina1.com/adsl suggests 12000Kbps to 15700Kbps from ADSL2+, upstream very close to 1Meg

Cool thanks. Does noise margin work differently with adsl2+

Anything below 6db with adsl2 used to cause issues

Works the same way

In reply to a post by bobble_bob:

Taken alot of messing around to get a stable line

Any messing about would have been with your home wiring, which will be equally applicable for ADSL2+, from which you should get 12 Meg Down & 1 Meg Up Syncs. Maybe another 1 to 1.5 Meg Down if line is still stable at 3 dB Target NM, which they try to lower it to if at all possible.

We received our notification congratulating us on our free "upgrade" to ADSL2+ last night.

No notification and now running at 1/3 the speed of our previous connection. ISP response so far seems to be "unlucky mate".

Lots of advice about changing our internal wiring but that's kinda missing the point - we didn't change anything, our ISP/BT did outside of our control and now we have 700kbps and can't do anything worthwhile on the net other than simple browsing. We got more than this with Pipex in the "good old days".

What can I do please? Will this sort itself out in the coming days? FTTC cabinets have been installed and we were supposed to be live in December, now it says March - ah well..... We'll just shut our home based business down then. Not happy at all.

Thanks

In reply to a post by spon:

As in this thread. I reckon it's just whatever is wrong there getting worse. I've posted more in that thread.