Observer

t3 t4

Tue Mar 14 20:45:57 20175TCS Partial Service;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:01:38 19703No Ranging Response received - T3 time-out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 21:30:12 20175TCS Partial Service;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 21:30:43 20173No Ranging Response received - T3 time-out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:47:52 20175RCS Partial Service;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:47:52 20173SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:47:52 20175RCS Partial Service;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:47:52 20173SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:47:58 20173Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:47:58 20175Lost MDD Timeout;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:48:03 20173Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 14:49:01 20173SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 22:49:23 20175TCS Partial Service;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:01:38 19703No Ranging Response received - T3 time-out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 23:36:08 20175TCS Partial Service;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 23:36:40 20173No Ranging Response received - T3 time-out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Tue Mar 14 23:37:22 20175ToD request sent - No Response received;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:01:40 19703No Ranging Response received - T3 time-out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Wed Mar 15 00:21:15 20175TCS Partial Service;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
Wed Mar 15 00:21:58 20173No Ranging Response received - T3 time-out;CM-MAC=2c:7e:81:2a:f0:63;CMTS-MAC=00:01:5c:67:ce:71;CM-QOS=1.1;CM-VER=3.0;
3 REPLIES
Expert

Re: t3 t4

Copying the signal page would help, looks like excessive upstream loss and modems at +53 dBmv or higher on one or more of the 4 channels....

 

Observer

Re: t3 t4

Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectedUncorrectables
1Locked256QAM31699.00 MHz1.20 dBmV40.37 dB00
2Locked256QAM9567.00 MHz3.10 dBmV40.37 dB00
3Locked256QAM10573.00 MHz2.90 dBmV40.95 dB00
4Locked256QAM11579.00 MHz2.70 dBmV40.37 dB130
5Locked256QAM12585.00 MHz2.70 dBmV40.37 dB60
6Locked256QAM13591.00 MHz2.50 dBmV40.95 dB100
7Locked256QAM14597.00 MHz2.50 dBmV40.37 dB230
8Locked256QAM15603.00 MHz2.20 dBmV40.37 dB130
9Locked256QAM16609.00 MHz2.10 dBmV40.37 dB120
10Locked256QAM17615.00 MHz2.00 dBmV40.37 dB00
11Locked256QAM18621.00 MHz1.80 dBmV40.95 dB00
12Locked256QAM19627.00 MHz1.60 dBmV40.95 dB00
13Locked256QAM20633.00 MHz1.60 dBmV40.37 dB00
14Locked256QAM21639.00 MHz1.40 dBmV40.37 dB00
15Locked256QAM22645.00 MHz1.40 dBmV40.37 dB00
16Locked256QAM23651.00 MHz1.30 dBmV40.37 dB00
17Locked256QAM24657.00 MHz1.00 dBmV40.37 dB00
18Locked256QAM25663.00 MHz1.20 dBmV40.37 dB00
19Locked256QAM26669.00 MHz1.10 dBmV40.37 dB00
20Locked256QAM27675.00 MHz1.20 dBmV40.37 dB00
21Locked256QAM28681.00 MHz1.10 dBmV40.37 dB00
22Locked256QAM29687.00 MHz1.00 dBmV40.37 dB00
23Locked256QAM30693.00 MHz1.20 dBmV40.37 dB00
24Locked256QAM32705.00 MHz1.30 dBmV40.37 dB00

 

 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA605120 kSym/s37.00 MHz51.00 dBmV
2LockedATDMA595120 kSym/s30.60 MHz51.00 dBmV
3LockedATDMA585120 kSym/s23.30 MHz51.00 dBmV
4LockedTDMA572560 kSym/s18.50 MHz52.00 dBmV

 

 
Expert

Re: t3 t4

US @ +51-52 is too close.

You need to get the splitters out of the line, modem must be on none if you're internet only or the first 2 way if you have cable tv with the cable boxes split off the first 2 way's other port.

It also looks like the modem was just reset and the correcteds were cleared out...appears to be a noise ingress issue, repost levels in another half hour, hopefully without a reset.

i