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Thread ID: 138083 2014-10-02 07:38:00 ADSL 2+ enable or not? victorcharlie (442) Press F1
Post ID Timestamp Content User
1385479 2014-10-02 07:38:00 Telecom says my line is ADSL 2+ but when I changed the modem to a ADSL 2+ configuration the internet disconnects and wont re-connect.
The telnet command I used to change the config was: xdsl config adsl2plus
I'm thinking the 'signal?' to my house isn't 2+?

Modem: THOMSON TG585v7
victorcharlie (442)
1385480 2014-10-02 20:06:00 I've noticed when changing the config the DSL type stays at G.992.1 annex A, but since it disconnects and wont reconnect it must have changed. Is anyone using this modem getting speeds over 14Mbit/s down and over 2Mbit/s up? victorcharlie (442)
1385481 2014-10-02 20:14:00 14Mbps down and 2Mbps up is already ADSL2+, and you won't get higher on ADSL2+ for upstream. Yes I have seen these modems do ~20Mbps downstream.

The default setting on these should be to negotiate the connection type, and they're generally pretty good at doing so. Why are you trying to force it to ADSL2+? If we understand what you're trying to achieve it may be easier to provide advice.
inphinity (7274)
1385482 2014-10-02 20:37:00 Why are you using telnet commands rather than the GUI? Upstream will be limited to under 1Mbps I believe and anything over 8Mbps is ADSL2/2+ or better as inphinity mentioned already. Before switching to VDSL I was getting 16/0.9 on ADSL2+ which is fairly normal. I'm 660M from the cabinet. On VDSL I get 24/10.

The ISPs all use ADSL2+ upwards, older standards may still work but you'd have to use an old modem to find out because everything supplied recently is configured for the newer standards and has been for a few years now.

In short it was already working on ADSL2+ and you are playing around with the settings for nothing.
dugimodo (138)
1385483 2014-10-02 20:40:00 sorry, my speed are Bandwidth (Up/Down) [kbps/kbps]: 960 / 7.616

I asked for those speed because then I'd know if this modem can do ADSL2+, which I now know thanks.
victorcharlie (442)
1385484 2014-10-03 00:39:00 Ok that's so slow it's outside the limits of what most ISP's will provision. You have the decimal point in the wrong place for upstream? I think the minimum speed you can connect at is 64kbps. Or is that a speed test rather than a connection speed from the router?
Sounds like you are either a long way from the exchange/cabinet or have bad cable. Even when I was 3.5 KM from mine I got nearly 3Mbps. After a certain distance ADSL2+ is no faster than plain ADSL as all the improvements were aimed at short lines. I think from memory its about 2K or less to see a benefit.
5956

xDSL signals break the spectrum up into small chunks (my word, forget the official term) each with enough bandwidth for 64Kbps then tests each "chunk to see if it's usable when initially connecting. Your connection speed should therefore always be a multiple of 64Kbps and never slower than that.
dugimodo (138)
1385485 2014-10-03 01:50:00 Its copied/pasted from the router, from www.spark.co.nz victorcharlie (442)
1385486 2014-10-03 02:33:00 That means nothing, at all.

The modem should have a page showing the all the technical stats of your connection. Post that.
Cato (6936)
1385487 2014-10-03 07:33:00 Ok that's so slow it's outside the limits of what most ISP's will provision.

7.6Mbps down and 960Kbps up is actually good, and is at the upper limit of ADSL1. It's orders of magnitude above the 32Kbps/15min ComCom requirement.
inphinity (7274)
1385488 2014-10-03 10:37:00 7.6Mbps down and 960Kbps up is actually good, and is at the upper limit of ADSL1. It's orders of magnitude above the 32Kbps/15min ComCom requirement.
Yep I misread the up and down and didn't account for one being Mbps because the post said both were Kbps, realised later but it was too late to edit.
dugimodo (138)
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