Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;
For past 2 days I am seeing a lot of these error on my modem logs.
It has worked perfectly for almost 6 months now. And suddenly this has started.
Modem is Motorola 6121.
Below are the signal stats. I dont have a splitter. Modem is directly connected to the coaxial cable
Downstream
----------------
Channel ID 3 1 2 6
Frequency 663000000 Hz 651000000 Hz 657000000 Hz 681000000 Hz
Signal to Noise Ratio 37 dB 37 dB 37 dB 38 dB
Downstream Modulation QAM256 QAM256 QAM256 QAM256
Power Level 0 dBmV 0 dBmV 0 dBmV -1 dBmV
Upstream
-------------
Channel ID 9
Frequency 22000000 Hz
Ranging Service ID 10153
Symbol Rate 2.560 Msym/sec
Power Level 57 dBmV
Upstream Modulation [3] QPSK
[2] 16QAM
[3] 64QAM
Ranging Status Success
Signal stats(codewords)
------------------------------
Channel ID 3 1 2 6
Total Unerrored Codewords 349582866 349582872 349582869 349582881
Total Correctable Codewords 34 32 29 21
Total Uncorrectable Codewords 642 643 649 648
I chatted with comcast customer care yesterday & she went over re-starting modem & router citing that modem was out of sync with the server. And rebooting has got it into sync.
It worked after that till today afternoon, where it started the same problem again.
My logs are full of these errors.
Jun 16 2014 16:44:27 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:00:13 6-Notice N/A Cable Modem Reboot due to T4 timeout ;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.0;
Jun 16 2014 16:43:37 3-Critical R04.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jun 16 2014 14:33:07 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:26:16 3-Critical R04.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:23:32 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:23:32 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:23:30 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:22:28 3-Critical R04.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:21:58 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:21:11 3-Critical R04.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:18:30 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:18:16 3-Critical R04.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:17:00 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:16:46 3-Critical R06.0 Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:16:46 3-Critical R03.0 Ranging Request Retries exhausted;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:16:44 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:15:50 3-Critical R04.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:15:20 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Jan 01 1970 00:14:33 3-Critical R04.0 Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=90:3e:ab:92:0e:88;CMTS-MAC=00:01:5c:22:32:84;CM-QOS=1.1;CM-VER=3.0;
Not sure whats going on.
Can someone plz help ?