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Posted by Mikal448 on September 27, 2005, 6:34 pm
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The Cox cable rep that came out to my home replaced the coax running
from the modem to the splitter as well, with no noticeable results.
I've ordered a Motorola cable modem, I guess i'll see if it's the
modem itself or not.
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Posted by Quaoar on September 28, 2005, 5:58 pm
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Mikal448 wrote:
> The Cox cable rep that came out to my home replaced the coax running
> from the modem to the splitter as well, with no noticeable results.
> I've ordered a Motorola cable modem, I guess i'll see if it's the
> modem itself or not.
OK, but what did the tech say about signal levels? He should have
diagnosed the line while he was there. I do think that if you cannot
access the modem status page that there is a problem with the modem.
Can you access the modem stastus page if you take the router out of the
system (reboot the modem before starting any computers!)?
Q
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Posted by Mikal448 on September 29, 2005, 8:33 am
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Upon installing my new motorola cable modem the problem was fixed.
Turns out my old router had just had it :(
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Posted by Jon on October 17, 2005, 9:14 am
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Next time you call in ask the rep what your "Flap" report reads. This
is the report that tells when the modem looses and regains sync, and
how many times it does this. Also look at your modem log page and look
for periods when the modem suddenly shuts down the downstream for no
reason, e.g. there were no entires where it said "LOST TRC SYNC --
TRYING TO RECOVER".
Five years is a long time, especially for an early generation cable
modem. It's likely the RF tuner simply got old and can no longer
deliver a clear enough signal.
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Posted by on October 29, 2005, 11:41 am
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I've got a Linksys with similar problems:
System Information
This page provides the basic information about your cable modem.
Standard Specification Compliant DOCSIS 1.0
Hardware Version 3.0
Software Version 1.0.4 Release 2 (befcmu10v104r2e.bin)
The Comcast tech said I needed DOCSIS 1.1 or higher which the version 3
supports 1.1 AND 2.0. Linksys said that Comcast needed to "give me the
higher version" and the Comcast tech said that they couldn't download
the upgrade to my modem.
They were upgrading my system about 2 months ago and the levels were
too high around +20 (now +8) and the SNR was under 30 when it would
drop (now 37). the ping to their office was 10 ms with no packet loss.
What am I looking for in the Flap report? Will it tell whether it's my
modem or their lines that causes the synch loss?
If my modem is capable of DOCSIS 1.1 or 2.0, how do I turn it on or
enable in in the modem?
Thanks.
Here's the latest log page.
Time Priority Description
1999-10-05 00:01:30 information Scan Downstream Frequency...
1999-10-05 00:01:34 information Sync recovery loop is locked
1999-10-05 00:01:52 information Beginning ranging process. Initial
Power=26.00 dBmV
1999-10-05 00:01:37 information Got a map with the new UCD change
count, and changed upstream parms
1999-10-05 00:01:45 critical No Ranging Response received -T3 time-out
1999-10-05 00:02:00 debug DHCP_coldstart() successfully
1999-10-05 00:02:00 information DHCP: IP complete
2005-10-29 13:02:42 information Processing Configuration File
2005-10-29 13:02:42 information Sending Registration Request
2005-10-29 13:02:43 information Received REG-RSP from CMTS
2005-10-29 13:02:43 information Locked Plan ID : 0 , Locked Frequency =
699000000 Hz
2005-10-29 13:02:43 notice Cable Modem Status set to Registration
Complete
2005-10-29 13:02:45 information Authorized
2005-10-29 13:02:45 notice CM RF interface LinkUp
2005-10-29 13:02:42 information Scan Downstream Frequency...
2005-10-29 13:02:47 information Sync recovery loop is locked
2005-10-29 13:02:49 information Beginning ranging process. Initial
Power=44.00 dBmV
2005-10-29 13:02:49 information Got a map with the new UCD change
count, and changed upstream parms
2005-10-29 13:02:53 debug DHCP_coldstart() successfully
2005-10-29 13:02:54 information DHCP: IP complete
2005-10-29 13:13:11 information Processing Configuration File
2005-10-29 13:13:11 information Sending Registration Request
2005-10-29 13:13:11 information Received REG-RSP from CMTS
2005-10-29 13:13:11 notice Cable Modem Status set to Registration
Complete
2005-10-29 13:13:13 information Authorized
2005-10-29 13:13:13 notice CM RF interface LinkUp
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