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ezicefield's avatar
ezicefield
Follower
Jan 27, 2016

C7000-100NAS randomly drops internet connection

Hello,   My C7000-100NAS modem seems to randomly drop it's Comcast connection. This happen on 2.4 ghz, 5 ghz, and wired connections. There is no pattern, however the dropped connection usually last...
Firmware
Hardware
Troubleshooting
8th_Day's avatar
8th_Day
Aspirant
Jun 29, 2016

Need help.  The firmware release has not solved the issue with Comcast. We have Comcast Internet only since they started in Illinois area and never had cable TV.   Invested in the newer technology because you had a Comcast Certification, so I did not expect these types of issues.

 

With instructions, we can do and check anything.

 

Hardware Version

1.05
Mac & Windows Network
Firmware VersionV1.01.20

 Internet only - No Cable  - Comcast

 

Wireless is Itv and Roku

 

Loosing connections.

These events keep happening over and over again.

Fouter Event Log

 

1970-1-1, 00:00:39Critical (3)SYNC Timing Synchronization failure - Failed to acquire FEC framing;CM-MAC=b0:7f:b9:d7:20:80;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:42Notice (6)WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:42Notice (6)WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:46Critical (3)No Ranging Response received - T3 time-out;CM-MAC=b0:7f:b9:d7:20:80;CMTS-MAC=00:01:5c:7f:9a:5a;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:51Notice (6)Honoring MDD; IP provisioning mode = IPv6
2016-6-27, 16:15:21Warning (5)Dynamic Range Window violation
2016-6-29, 09:47:55Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:7f:b9:d7:20:80;CMTS-MAC=00:01:5c:7f:9a:5a;CM-QOS=1.1;CM-VER=3.0;
2016-6-29, 09:47:55Warning (5)Dynamic Range Window violation
2016-6-29, 13:43:12Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=b0:7f:b9:d7:20:80;CMTS-MAC=00:01:5c:7f:9a:5a;CM-QOS=1.1;CM-VER=3.0;


 

Frequency start Value
This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect.
Starting Frequency
 
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel741000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
IP Provisioning ModeHonor MDDhonorMdd(4)
 
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1LockedQAM25619741000000 Hz3.1 dBmV39.7 dB1771
2LockedQAM2561633000000 Hz2.3 dBmV39.7 dB1288
3LockedQAM2562639000000 Hz2.2 dBmV39.5 dB2146
4LockedQAM2563645000000 Hz2.1 dBmV39.6 dB29115
5LockedQAM2564651000000 Hz1.8 dBmV38.7 dB2788
6LockedQAM2565657000000 Hz1.9 dBmV39.3 dB1862
7LockedQAM2566663000000 Hz2.2 dBmV39.5 dB4156
8LockedQAM2567669000000 Hz2.5 dBmV39.6 dB532
9LockedQAM2568675000000 Hz2.6 dBmV38.4 dB29141
10LockedQAM2569681000000 Hz2.8 dBmV39.7 dB1359
11LockedQAM25610687000000 Hz2.9 dBmV39.7 dB3835
12LockedQAM25611693000000 Hz3 dBmV39.8 dB2659
13LockedQAM25612699000000 Hz3 dBmV39.8 dB2333
14LockedQAM25613705000000 Hz2.9 dBmV39.8 dB1654
15LockedQAM25614711000000 Hz3 dBmV39.8 dB1040
16LockedQAM25615717000000 Hz2.9 dBmV39.8 dB4028
17LockedQAM25616723000000 Hz3.4 dBmV40.4 dB00
18LockedQAM25617729000000 Hz3.4 dBmV40.3 dB00
19LockedQAM25618735000000 Hz3.3 dBmV40.2 dB00
20LockedQAM25620747000000 Hz3.6 dBmV40.3 dB00
21Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
22Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
23Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
24Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1LockedATDMA815120 Ksym/sec36400000 Hz45 dBmV
2LockedATDMA825120 Ksym/sec29500000 Hz44 dBmV
3LockedATDMA835120 Ksym/sec22600000 Hz42.3 dBmV
4Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
 
Current System Time:Wed Jun 29 15:05:57 2016
8th_Day's avatar
8th_Day
Aspirant
Jun 29, 2016

Additional error just moments ago

 

2016-6-29, 15:05:51Notice (6)WiFi Interface [wl0] set to Channel 1 (Side-Band Channel:N/A) - Reason:INTERFERENCE

 

This happened between two other errors dated  2016-06-27

 

1970-1-1, 00:00:42Notice (6)WiFi Interface [wl0] set to Channel 6 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:42Notice (6)WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT

 

Remember that only iTV and Roku are wireless

 

Thank you