ADSL Max / ADSL2 query

Duke · 16 Jul 2012 at 11:01

Hi all,

I've got someone who is on BT Business Broadband. The router is connected at a solid 8mbit (they are close to the exchange). I think this means they are on ADSL Max, but think they should be on ADSL2 or LLU to get quicker speeds, i.e. 16-24mbit? They spoke to BT who said that is the best service they can get on the exchange.

Can they get any quicker from another provider? I thought ADSL2 was available for all the exchanges some years ago? Or is this what LLU is? They have Sky and Talktalk on the LLU list available. FTTC isn't on the BT list yet so will be a couple of years.

Router stats below

G.DMT
Annex A
Downlink 8128000
Uplink 1024000
SNR Margin 10.0
Loop Att. 6.0

Any ideas or help to get them on quicker service would be appreciated.

blueacid · 16 Jul 2012 at 13:23

Head to samknows.com, run an exchange search and then let us know which exchange it is. Not all exchanges are adsl2 enabled.

Duke · 16 Jul 2012 at 13:53

http://www.samknows.com/broadband/exchange/SSBOA

#Chri5# · 16 Jul 2012 at 13:57

G.DMT suggests it's training on ADSL, if it was ADSL2+ I'd expect it to say G.992.5. Can you change the ADSL mode on the router?

Duke · 16 Jul 2012 at 15:20

Hi, yep it can be changed, see below.

I'll give it a try in a day or two when I see them next. Thanks

#Chri5# · 16 Jul 2012 at 15:46

If you stick Modulation to Multimode it should pick the best option automatically (eg ADSL2 over G.DMT (ADSL)).

Kipper67 · 16 Jul 2012 at 16:05

I'm pretty sure you will have to contact BT business broadband and ask for the line to be regraded to adsl2+ , it's not automatic as I've just had to so the same with Plusnet . Adsl2+is available on the exchange you linked that's what the 21cn wbc status is. Assuming you don't go the LLU route that is.

bledd · 16 Jul 2012 at 17:15

21cn = adsl2+

Mine was recently upgraded to this, getting 19-20mbit now, was on 7 before

dwskillz · 16 Jul 2012 at 17:58

#Chri5# said:
If you stick Modulation to Multimode it should pick the best option automatically (eg ADSL2 over G.DMT (ADSL)).

Duke · 18 Jul 2012 at 10:35

Good news, now connected at 18Mbit

The Auto mode kept it on ADSL1, so I tried the various options of ADSL2/2+ and they all gave about 18. Speedtests only give about 11 so it seems a bottleneck with BT now. Either way its connecting quicker and seems more responsive than before.

Thanks all

KIA · 18 Jul 2012 at 11:51

Duke said:
Speedtests only give about 11 so it seems a bottleneck with BT now.

Might need to wait for the IP profile to rise.

Duke · 18 Jul 2012 at 18:59

Ok, I'll check that in a couple of days.

Duke · 19 Jul 2012 at 10:38

Profile is okay, just seems slow - see below from the BT checker.

Download speed achieved during the test was - 9.81 Mbps
IP Profile for your line is - 16 Mbps

bledd · 19 Jul 2012 at 13:20

How are you connecting to the router?

Try via ethernet. Both wireless / powerline can be horrible to your speeds!

Duke · 19 Jul 2012 at 17:51

Yeah its directly into the router via ethernet.