I'm fairly new to this and have read previous posts, still not sure please help?

[ikuto]

This is old, but i'm lost. My connection has constantly dropped when downloading for long periods or using my cable modem excessively for about 2 years now. It happens at random times of the day. I've been reading and i conclude that maybe my Downstream Power is too high?? If so what can i do about it? Check and get better splitters? Maybe it isn't one of those 1 Ghz ones? I've called Comcast to send someone to take a look at it twice, but still the problem is there. They found nothing wrong....
Please help???

Downstream Channel
The data shown in the table below provides information about the signal coming from the
network to your cable modem.
Lock Status Locked Modulation QAM64
Channel ID 2 Symbol rate 5056941 sym/sec
Downstream Frequency 693000000 Hz Max Bit Rate 3300000 bps
Downstream Power 13.38 dBmV SNR 35 dB


Upstream Channel
The data shown in the table below provides information about the signal being transmitted to
the network from your cable modem.
Lock Status Locked Modulation QPSK
Channel ID 2 Symbol rate 2560 ksym/sec
Upstream Frequency 28304000 Hz Max Bit Rate 256000 bps
Upstream Power 30.50 dBmV

[ikuto]

Here is my log of problems too on my Linksys Cable modem connected to a 4 port Linksys Router....if it helps

2004-10-05 23:35:48 information Authorized MAC addr:
2004-10-05 23:35:47 information Cable Modem Status set to Registration Complete
2004-10-05 23:35:47 information Received REG-RSP from CMTS
2004-10-05 23:35:47 information Sending Registration Request
2004-10-05 23:35:47 information Processing Configuration File
2004-10-05 22:30:00 information DHCP: IP complete
2004-10-05 22:29:59 debug DHCP_coldstart() successfully
2004-10-05 22:29:58 information Beginning ranging process. Initial Power=31.00 dBmV
2004-10-05 22:29:58 information Got a map with the new UCD change count, and changed upstream parms
2004-10-05 22:29:53 information Sync recovery loop is locked
2004-10-05 22:29:50 information Scan Downstream Frequency...
2004-10-05 22:29:51 notice Interface index:4 LinkUp
2004-10-05 22:29:51 notice Interface index:3 LinkUp
2004-10-05 22:29:51 notice Interface index:2 LinkUp
2004-10-06 00:16:11 information Cable Modem Status set to Registration Complete
2004-10-06 00:16:11 information Received REG-RSP from CMTS
2004-10-06 00:16:11 information Sending Registration Request
2004-10-06 00:16:11 information Processing Configuration File
2004-10-06 00:09:30 information DHCP: IP complete
2004-10-06 00:09:29 debug DHCP_coldstart() successfully
2004-10-06 00:09:28 information Beginning ranging process. Initial Power=31.00 dBmV
2004-10-06 00:09:28 information Got a map with the new UCD change count, and changed upstream parms
2004-10-06 00:09:24 information Sync recovery loop is locked
2004-10-06 00:09:21 information Scan Downstream Frequency...
2004-10-05 23:35:48 notice Interface index:4 LinkUp
2004-10-05 23:35:48 notice Interface index:3 LinkUp
2004-10-05 23:35:48 notice Interface index:2 LinkUp
2004-10-05 23:35:48 information Authorized MAC addr:
2004-10-06 17:11:58 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
2004-10-06 11:35:14 critical SYNC Timing Synchronization failure - Failed to acquire FEC framing
2004-10-06 11:35:13 warning Cable Lost FEC lock
2004-10-06 07:34:35 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
2004-10-06 01:46:33 notice Interface index:4 LinkUp
2004-10-06 01:46:33 notice Interface index:3 LinkUp
2004-10-06 01:46:33 notice Interface index:2 LinkUp
2004-10-06 01:46:33 information Authorized MAC addr:
2004-10-06 01:46:32 information Cable Modem Status set to Registration Complete
2004-10-06 01:46:32 information Received REG-RSP from CMTS
2004-10-06 01:46:32 information Sending Registration Request
2004-10-06 01:46:32 information Processing Configuration File
2004-10-06 01:37:01 information DHCP: IP complete
2004-10-06 01:37:01 debug DHCP_coldstart() successfully
2004-10-06 01:36:59 information Beginning ranging process. Initial Power=29.00 dBmV
2004-10-06 01:36:59 information Got a map with the new UCD change count, and changed upstream parms
2004-10-06 01:36:54 information Sync recovery loop is locked
2004-10-06 01:36:51 information Scan Downstream Frequency...
2004-10-06 01:10:23 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out
2004-10-06 00:16:12 notice Interface index:4 LinkUp
2004-10-06 00:16:12 notice Interface index:3 LinkUp
2004-10-06 00:16:12 notice Interface index:2 LinkUp

[mccoffee]

http://www.speedguide.net/read_articles.php?id=1197 your signal seems fine leave the modem off and router off for about 5-10mins

[ikuto]

http://www.speedguide.net/read_articles.php?id=1197 your signal seems fine leave the modem off and router off for about 5-10mins

My cable modem just crashed again...here is the error

2004-10-07 09:47:40 error ToD request sent - No Response received
2004-10-07 09:47:32 error ToD request sent - No Response received
2004-10-07 07:47:24 error ToD request sent - No Response received
2004-10-07 07:47:16 error ToD request sent - No Response received
2004-10-07 05:47:08 error ToD request sent - No Response received
2004-10-07 05:47:00 error ToD request sent - No Response received


I do a power drain just to get the modem to work again, but eventually it will just drop my connection. It is very annoying...

By the way, it was doing this even when i was renting the 3 Com cable modem from comcast. I bought and switched to the linksys cable modem and yet the problem was still there. There has to be something wrong?

[Sava700]

Question:

are you connected via NIC or USB port?

If Nic then perhaps its the card going bad has happened.
If your on a USB get off it!!! and go to NIC!
Make sure you have a good Cat5 cable running from Modem to comp if your already on a NIC for starters. I've run into something similar before but it was due to Adelphia's Node going bad.. but you need to go through a Act of Congress to get them off there asses to go out and check more than just the computer in front of there faces saying everything is ok! You may wish to check around the area on others you know with the same connection and see if they have the same problem as in Cable you have several users on the same Node.

[ikuto]

Question:

are you connected via NIC or USB port?

If Nic then perhaps its the card going bad has happened.
If your on a USB get off it!!! and go to NIC!
Make sure you have a good Cat5 cable running from Modem to comp if your already on a NIC for starters. I've run into something similar before but it was due to Adelphia's Node going bad.. but you need to go through a Act of Congress to get them off there asses to go out and check more than just the computer in front of there faces saying everything is ok! You may wish to check around the area on others you know with the same connection and see if they have the same problem as in Cable you have several users on the same Node.

I have the cable modem connected to the router with a nice and short Belkin CAT 5 cable to my Linksys Router. My router has the latest firmware. I also checked all the splitters in the house, they are 1 Ghz. I've been trying to tell Comcast that maybe it is something wrong with their node, but the service guy said they checked it and nothing is wrong. I have a feeling they didn't? Checked my signal and no problem. I connected the cable connection straight to one of my computers and started downloading constantly and it eventually dropped the connection anyway. They even installed a signal booster which plugs into a power outlet and run a coaxial through it. How would i go about convincing them that it is their problem? I think i will knock on some next door neighbors and ask as well i guess. More suggestions/solutions?

Thx so much...appreciate the responses!!

[Sava700]

get on tech support again and go up to the Next level of Tech support.. insist there is a problem.. even after they go through the normal unplug this and that junk. Post back what they say cause they can go and really hit your computer and modem to find problems.