Re: Two failing modems just before ADSLmax switch-on ... one big coincidence?
- From: poster <us-mail@xxxxxxxxxxxxxx>
- Date: Wed, 29 Mar 2006 01:26:05 +0100
On 28 Mar 2006 22:48, gallafent wrote:
The modem there was a Dynamode R-ADSL-C4, which has a Conexant chipset.
Thanks for the heads-up on this one. Although none of my friends or
family is actually using that particular modem/router (it's one I had
been considering, next time I saw one cheap on Ebay), I certainly have
or know of a few units which are running the Conexant chipset. Know of
a couple of Edimax units, 2 or 3 Safecom units, PTI/DabsValue units and
at least one which says "Conexant" on the admin web page :-) Will keep
a check on how they do when different exchanges get upgraded. These do
happen to be all over the place, from Staffs and S Wales to London and
Kent, but in most cases I expect my phone will ring first !!
The question is: Is something being changed at the exchange end in
preparation for ADSLmax, which is causing these problems? Line card
firmware update?
Out of interest, is there anything in common with the exchange hardware?
I think some of the more recent firmware versions report the details in
the system log... From my sister's Safecom (in Staffordshire) it says
01/01/1970 00:00:19> Max Tx Power: -38dBm/Hz
01/01/1970 00:00:19> CO Vendor: TEXAS_INSTRUMENTS
01/01/1970 00:00:19> d/s SNR: 32.5dB, u/s SNR: 30.0dB
and an Edimax in S Wales
01/01/1970 00:00:17> Max Tx Power: -38dBm/Hz
01/01/1970 00:00:17> CO Vendor: TEXAS_INSTRUMENTS
01/01/1970 00:00:17> d/s SNR: 39.9dB, u/s SNR: 23.0dB
By chance, both show Texas Instruments
(CO = Central Office, which Americans use for telephone exchange)
My (pretty old) Conexant doesn't report the CO equipment, unfortunately,
but I did buy a few more routers recently for a quid or two each so one
or other might show this info... Unfortunately the single-port Safecom
doesn't seem to work over a remote link, else I'd check a friend's unit
elsewhere... the single port model seems to have a bug and goes to the
local LAN IP address in the URL, so while it is 84.xx.xx.xx from here I
click the "advanced setup" link and it goes to 10.0.0.100... and fails!
It seems like a really big coincidence for two modems with the same
chipset to fail within 5 days of each other, both exhibiting the same
symptoms - of appearing to work fine, but reporting bad statistics on
the line. I'm planning to try a new modem on my home line soon, to see
if the problem magically goes away here too!
Yes - worth knowing, and a shame if it hits them all this way! Peter.
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