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Setting up G.DMT on Netgear

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Jack Rabbitt

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Jul 7, 2012, 6:45:28 AM7/7/12
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Hi All,

I have been advised by my ISP to set my ADSL mode on my router to G.DMT.

Not so easy as it sounds?

I am using a DT834GT Neargear router - era 2006, and I cannot find the
setting for this.

Under the router setup settings , i only have

ADSL Settings =>

Multiplexing Method VC-BASED selected
VPI set to 0
VCI set to 38

There is no option for DSL setting to G.DMT?, at least not via the
http://192.168.0.1/


Any ideas?

Thanks

Jack.


The Natural Philosopher

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Jul 7, 2012, 7:16:25 AM7/7/12
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Unusual to find a router that allows anything BUT G.DMT.
At least on ADSL or ADSL2 auto.

Sounds like the droid at the other end is just tossing you off.

Netgears are designed for idiots, with few tunables.

They should 'just work'

what's the problem?

> Thanks
>
> Jack.
>
>


--
To people who know nothing, anything is possible.
To people who know too much, it is a sad fact
that they know how little is really possible -
and how hard it is to achieve it.

Graham.

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Jul 7, 2012, 7:20:13 AM7/7/12
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Do you mean DG834GT?

You could probably do it with Telnet, but you might consider
re-flashing the firmware with the DG Team replacement which will give
it a new lease of life with a few new bells and whistles including
direct selection of modulation mode.

Perhaps you could explain why you are doing this, are you on ADSL2+
but too far from the exchange to benefit?



--
Graham.
%Profound_observation%

Jack Rabbitt

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Jul 7, 2012, 7:27:24 AM7/7/12
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"Graham." <m...@privacy.net.invalid> wrote in message
news:b56gv7lvh5h5c5028...@4ax.com...
Hi Graham,

Yes thats right, Ive been advised to try and set my router to G.DMT as im
around 3 miles away from the exchange.

I could try flashing my firmware, never done it before, is it hard, any
ideas where to start!

Thanks
Jack


The Natural Philosopher

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Jul 7, 2012, 7:33:59 AM7/7/12
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do you have the option to select ADSL or ADSL2 as an alternative to ADSL2+?

The Natural Philosopher

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Jul 7, 2012, 7:36:03 AM7/7/12
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looks like there should be an mode check box that you can change to
something other than 'auto'

Invalid

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Jul 7, 2012, 7:34:38 AM7/7/12
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In message <ZqUJr.493361$2a.3...@en-nntp-14.dc1.easynews.com>, Jack
Rabbitt <a...@b.com> writes
Jack,

I can't help with settings for a vanilla 834GT as I haven't used one for
a long time, but I would suggest upgrading it to the DGTeam firmware.

It offers an Advanced ADSL settings page that allows you to select a lot
of things including G.DMT. I have used it for many years on an ex SKY
unit principally for its ability to allow me to adjust the SNR (my
ADSLMax line runs very reliably at 4dB).

Google will find it for you or try

http://dgteam.ilbello.com/index.php?pid=5

Its an easy upgrade, just make sure you have downloaded the recovery
utility from Netgear - just in case! I have never needed it, but then
I have a copy.


--
Invalid

Graham.

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Jul 7, 2012, 8:20:34 AM7/7/12
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Well you start here and download the file
http://dgteam.ilbello.com/index.php?pid=5

Now I know it all looks exceedingly dodgy, especially "Mirror 6"(!?!?)
but the firmware itself is well respected. Honest guv.
Once you've got it unzip the file and chose of the three English .img
files, they all seemed to work in my router and TBO I don't know what
the difference is
log into the router, chose firmware upgrade point it to the .img
file and click upgrade
Don't interrupt it until it has finished or you will end up with a
door-stop.
You might want to use an Ethernet cable connection rather than Wi-Fi
for the same reason.

At your own risk, E&OE etc. etc.

--
Graham.
%Profound_observation%

Jack Rabbitt

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Jul 7, 2012, 8:50:27 AM7/7/12
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"Invalid" <ne...@wisty.plus.com.invalid> wrote in message
news:42LM+NBO...@wisty.plus.com...
Thanks Guys - have you tried clicking on Mirror 6 lately !!


Jack Rabbitt

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Jul 7, 2012, 9:43:44 AM7/7/12
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"Jack Rabbitt" <a...@b.com> wrote in message
news:bgWJr.485153$Xo4.1...@en-nntp-13.dc1.easynews.com...
I just used mirror 1 to get the file, i noticed there were 3 eng files in
the zip,
DG834GT_V1.03.22_DGTeam_1018_eng_adsldrv022c.img
DG834GT_V1.03.22_DGTeam_1018_eng_adsldrv023o.img

I used this on DG834GT_V1.03.22_DGTeam_1018_eng_adsldrv026.img seeing as it
was 26 and didnt have a c or o in the end, was this the right one, no
guidence given on the site on what to use?

Anyways, the upshot is, i still dont have any `auto` selects or anything in
my ASDL settings!

HOwever in my Advanced ADSL settings, there is now a load of tickboxes, one
of which is G.DMT, G.Lite etc,
They are all currently ticked, should they all be ticked or just working
with one mode?!

Thanks for your help



Graham.

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Jul 7, 2012, 11:03:42 AM7/7/12
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Well done, you wont regret doing that.
As TNP said the G-DMT might be a bit of a red herring, I gave them all
ticked except multimode.

Many people have found that SNR Percentage slider useful in
influencing their margin and getting a better compromise between speed
and reliability.

You have, of course eliminated the possibility of your phones and
internal wiring are compromising your ADSL performance, and any phones
you do have connected are all wired through a single filter or
filtered faceplate?

--
Graham.
%Profound_observation%

Richard

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Jul 7, 2012, 11:11:52 AM7/7/12
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> Anyways, the upshot is, i still dont have any `auto` selects or anything
> in my ASDL settings!
>
> HOwever in my Advanced ADSL settings, there is now a load of tickboxes,
> one of which is G.DMT, G.Lite etc,
> They are all currently ticked, should they all be ticked or just
> working with one mode?!
>
> Thanks for your help

If a "DT834GT"is like my DG834 then browse to 192.168.0.1 & select the
ADSL settings menu.

After that adjust the DSL mode from Auto (multi-mode) to ADSL (G.DMT)

Hope this is useful.

Richard


DrTeeth

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Jul 7, 2012, 3:57:26 PM7/7/12
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On Sat, 07 Jul 2012 12:20:13 +0100, just as I was about to take a
herb, Graham. <m...@privacy.net.invalid> disturbed my reverie and wrote:

>You could probably do it with Telnet, but you might consider
>re-flashing the firmware with the DG Team replacement which will give
>it a new lease of life with a few new bells and whistles including
>direct selection of modulation mode.

The firmware is good, but the admin and support team are rude and
unresponsive. I have all their firmwares and am happy to supply one. I
was trying to get a pal registered in the DG Team site for support and
nobody responded and then the site went down for ages... A very iffy
outfit these days.

--

Cheers

DrT
______________________________
We may not be able to prevent the stormy times in
our lives; but we can always choose to dance
in the puddles (Jewish proverb).

Graham.

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Jul 7, 2012, 4:42:41 PM7/7/12
to
On Sat, 07 Jul 2012 20:57:26 +0100, DrTeeth <no-e...@tardis.com>
wrote:

>On Sat, 07 Jul 2012 12:20:13 +0100, just as I was about to take a
>herb, Graham. <m...@privacy.net.invalid> disturbed my reverie and wrote:
>
>>You could probably do it with Telnet, but you might consider
>>re-flashing the firmware with the DG Team replacement which will give
>>it a new lease of life with a few new bells and whistles including
>>direct selection of modulation mode.
>
>The firmware is good, but the admin and support team are rude and
>unresponsive. I have all their firmwares and am happy to supply one. I
>was trying to get a pal registered in the DG Team site for support and
>nobody responded and then the site went down for ages... A very iffy
>outfit these days.

Yes, I note your presence in the forum a couple of years ago.

Correct me if I'm wrong but aren't DGTeam just a bunch of code
crackers?
Support and civility would not be at the top of my list of
expectations.

--
Graham.
%Profound_observation%

Peter Able

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Jul 8, 2012, 7:38:52 AM7/8/12
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"Graham." <m...@privacy.net.invalid> wrote in message
news:tu6hv7hjvvo5esh2q...@4ax.com...
But open source, or open to bug reports, they were not!

PA


DrTeeth

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Jul 8, 2012, 10:35:36 AM7/8/12
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On Sat, 07 Jul 2012 21:42:41 +0100, just as I was about to take a
herb, Graham. <m...@privacy.net.invalid> disturbed my reverie and wrote:

>Support and civility would not be at the top of my list of
>expectations.
But there can be problems with their firmware and they do have a forum
(for support) and they just ignore people. I was trying to help
somebody get registered on the forum and the admins were less than
helpful. Not helping with software that one has modified in some
way...what is the point?

Jack Rabbitt

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Jul 8, 2012, 2:51:11 PM7/8/12
to

"Richard" <sp...@spam.com> wrote in message
news:04udnYilBfIlzGXS...@brightview.co.uk...
Re:
>I just used mirror 1 to get the file, i noticed there were 3 eng files in
the zip,
>DG834GT_V1.03.22_DGTeam_1018_eng_adsldrv022c.img
>DG834GT_V1.03.22_DGTeam_1018_eng_adsldrv023o.img
>I used this on DG834GT_V1.03.22_DGTeam_1018_eng_adsldrv026.img

Do we know if this was the best file for me to have used ?
DG834GT_V1.03.22_DGTeam_1018_eng_adsldrv026.img

Is it worth me setting the slider thing to more or less than 100% , and
keeping all the mode settings ticked?

Thanks


Graham.

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Jul 8, 2012, 4:48:49 PM7/8/12
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Post your router stats, here are mine I'm a few hundred meters from
the exchange so they are really good
ADSL Link Downstream Upstream
Connection Speed 21654 kbps 1053 kbps
Line Attenuation 18.0 db 9.2 db
Noise Margin 3.8 db 6.6 db

I think you have yet to tell us what the issue is you want to address.
Is it that you get frequent loss of sync, or you want higher speed?

Can you also answer the question I asked earlier; what if anything
have you done to optimise your internal wiring?
Perhaps you can describe the layout of the wiring & what you have
plugged in to it.

--
Graham.
%Profound_observation%

Jack Rabbitt

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Jul 9, 2012, 3:26:20 PM7/9/12
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"Graham." <m...@privacy.net.invalid> wrote in message
news:9mrjv71gqtsvqglc2...@4ax.com...
Hi Graham,

Thanks for your help, my router stats are..

ADSL Link Downstream Upstream
Connection Speed 2565 kbps 488 kbps
Line Attenuation 52.5 db 32.8 db
Noise Margin 14.6 db 14.8 db

Quite a big difference to yours!

My ISP said i have got some kind of errors on my line causing the connection
to drop out every now and again, and said can i get my mode to G.DMT.

I would love faster broadband if you know how!!

Many Thanks

Jack


DrTeeth

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Jul 9, 2012, 4:38:50 PM7/9/12
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On Mon, 9 Jul 2012 20:26:20 +0100, just as I was about to take a herb,
"Jack Rabbitt" <a...@b.com> disturbed my reverie and wrote:

>I would love faster broadband if you know how!!

The high noise margin tell that you have a VERY noisy line and that is
why the sync is poor - BT's system increases this (lowering the sync)
to improve stability. Standard margin is 6.0. The only time where a
high noise margin is good is if one is syncing at the maximum for
one's connection.

Andrew Benham

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Jul 10, 2012, 6:28:04 AM7/10/12
to
On 08/07/12 15:35, DrTeeth wrote:
> On Sat, 07 Jul 2012 21:42:41 +0100, just as I was about to take a
> herb, Graham. <m...@privacy.net.invalid> disturbed my reverie and wrote:
>
>> Support and civility would not be at the top of my list of
>> expectations.
> But there can be problems with their firmware and they do have a forum
> (for support) and they just ignore people. I was trying to help
> somebody get registered on the forum and the admins were less than
> helpful. Not helping with software that one has modified in some
> way...what is the point?

Indeed. They were asking for help with translating help text etc., and
when I offered to help fix some mistakes with their English they weren't
interested.
And they weren't prepared to release any of their source code, tools,
or notes. So I just assumed that they've given up.

Since BE members have been having problems with the DHCP client in the
later Netgear firmwares, I decided to revisit my pre-DGTeam firmware
hacking days. I've managed to put the old stand-alone udhcpc binary
into the DGTeam builds:

http://www.adsb.co.uk/software/DGTeam/



Andrew Benham

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Jul 10, 2012, 6:31:06 AM7/10/12
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You've just proved that the 026 adsl driver builds don't always brick
the router :-)

Jack Rabbitt

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Jul 10, 2012, 2:39:06 PM7/10/12
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"Andrew Benham" <ad...@address.invalid> wrote in message
news:jth09a$j38$1...@dont-email.me...
whatever that means?! - is it good or what?

any suggestions with the settings mate?


alexd

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Jul 10, 2012, 3:20:26 PM7/10/12
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Jack Rabbitt (for it is he) wrote:

> "Andrew Benham" <ad...@address.invalid> wrote

>> You've just proved that the 026 adsl driver builds don't always brick
>> the router :-)

> whatever that means?! - is it good or what?

Not bricking your router is good. Bricking it is when you render it
inoperable.

--
<http://ale.cx/> (AIM:troffasky) (UnSoEs...@ale.cx)
20:19:06 up 180 days, 22:52, 6 users, load average: 0.36, 0.25, 0.35
Qua illic est reprehendit, illic est a vindicatum

Jack Rabbitt

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Jul 10, 2012, 3:24:57 PM7/10/12
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"alexd" <trof...@hotmail.com> wrote in message
news:jthv9q$e12$2...@dont-email.me...
router is fine its the broadband thats bricked!


DrTeeth

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Jul 10, 2012, 3:45:20 PM7/10/12
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On Tue, 10 Jul 2012 11:28:04 +0100, just as I was about to take a
herb, Andrew Benham <ad...@address.invalid> disturbed my reverie and
wrote:

>Since BE members have been having problems with the DHCP client in the
>later Netgear firmwares, I decided to revisit my pre-DGTeam firmware
>hacking days.

I wonder how long it will be before you get an email from DG Team
demanding that you take them down like I did. I d/l all the firmwares
for my DG 834GT and made them available when DG Team went offline for
some time. I responded by telling them okay, but not to treat people
in a bad way (or words to that effect ;-)).

Graham.

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Jul 10, 2012, 4:47:18 PM7/10/12
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I didn't know that was an issue!
Currently using an 834PN with 026 and no issues so far.
I also have another two 834PN's with the other two versions, I can't
detect any difference between the three, can you enlighten me please?

I am with BE with a dynamic IP although it is very sticky indeed and
only seems to change if I force it to by spoofing a new MAC. I have
found that useful on occasion.

I have not experienced the WAN DHCP issue at all, but there is a weird
DNS (I imagine) issue where occasionally a webpage is not found and if
I click "back" on my browser instead of the previous page loading, the
page that did not load appears.
I'll go back to openDNS if it keeps happening.


--
Graham.
%Profound_observation%

The Natural Philosopher

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Jul 10, 2012, 6:46:29 PM7/10/12
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Graham. wrote:
, but there is a weird
> DNS (I imagine) issue where occasionally a webpage is not found and if
> I click "back" on my browser instead of the previous page loading, the
> page that did not load appears.

That sounds like a virus or malware..


> I'll go back to openDNS if it keeps happening.
>
>


--

Graham.

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Jul 10, 2012, 7:04:46 PM7/10/12
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On Tue, 10 Jul 2012 23:46:29 +0100, The Natural Philosopher
<t...@invalid.invalid> wrote:

>Graham. wrote:
>, but there is a weird
>> DNS (I imagine) issue where occasionally a webpage is not found and if
>> I click "back" on my browser instead of the previous page loading, the
>> page that did not load appears.
>
>That sounds like a virus or malware..
>
>
>> I'll go back to openDNS if it keeps happening.
>>
>>

OK I've switched back to openDNS, I'll see how it goes.

--
Graham.
%Profound_observation%

Andrew Benham

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Jul 12, 2012, 8:58:22 AM7/12/12
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Graham. wrote:

> Currently using an 834PN with 026 and no issues so far.
> I also have another two 834PN's with the other two versions, I can't
> detect any difference between the three, can you enlighten me please?
>
> I am with BE with a dynamic IP although it is very sticky indeed and
> only seems to change if I force it to by spoofing a new MAC. I have
> found that useful on occasion.
>
> I have not experienced the WAN DHCP issue at all

It'll be interesting to see whether the WAN DHCP issue appears when you
are switched to BE's new network.

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