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nickaz99's avatar
nickaz99
New Contributor

Major Connectivity Issues

I just moved to a new place and reconnected my modem/router that was previously without issue.  Now I am disconnected every hour or so, sometimes more.  Looked into router with nothing amiss.  Cable modem (Motorola Surfboard SB 6121) logs show repeated T3 timeouts.  Nothing else seems amiss.  Any idea what to do?

Attached are modem logs/signal.

Sep 18 2017 21:26:46 3-Critical R02.0 No Ranging Response received - T3 time-out;CM-MAC
Sep 18 2017 21:26:44 6-Notice I401.0 TLV-11 - unrecognized OID;CM-MAC;
Sep 18 2017 21:26:44 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC
Jan 01 1970 00:00:27 3-Critical R02.0 No Ranging Response received - T3 time-out
Jan 01 1970 00:00:14 6-Notice N/A Cable Modem Reboot due to power reset 
Sep 18 2017 21:06:28 6-Notice I401.0 TLV-11 - unrecognized OID
Sep 18 2017 21:06:28 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Jan 01 1970 00:00:20 3-Critical R02.0 No Ranging Response received - T3 time-out
Jan 01 1970 00:00:14 6-Notice N/A Cable Modem Reboot due to power reset 
Sep 18 2017 19:36:44 6-Notice I401.0 TLV-11 - unrecognized OID;
Sep 18 2017 19:36:44 5-Warning Z00.0 MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1
Jan 01 1970 00:00:18 3-Critical R02.0 No Ranging Response received - T3 time-out;
Jan 01 1970 00:00:14 6-Notice N/A Cable Modem Reboot due to power reset ;
Sep 18 2017 17:27:46 3-Critical R02.0 No Ranging Response received - T3 time-out;
DownstreamBonding Channel Value
Channel ID 3  1  2  4 
Frequency 813000000 Hz  801000000 Hz  807000000 Hz  819000000 Hz 
Signal to Noise Ratio 37 dB  37 dB  37 dB  37 dB 
Downstream Modulation QAM256  QAM256  QAM256  QAM256 
Power Level
The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading
8 dBmV   9 dBmV   9 dBmV   8 dBmV  

UpstreamBonding Channel Value
Channel ID 1  2  3  4 
Frequency 18400000 Hz  23300000 Hz  29800000 Hz  36300000 Hz 
Ranging Service ID 4055  4055  4055  4055 
Symbol Rate 2.560 Msym/sec  5.120 Msym/sec  5.120 Msym/sec  5.120 Msym/sec 
Power Level 37 dBmV  37 dBmV  39 dBmV  39 dBmV 
Upstream Modulation [3] QPSK
[2] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 		 [3] 16QAM
[3] 64QAM
 
Ranging Status Success  Success  Success  Success 

Signal Stats (Codewords)Bonding Channel Value
Channel ID 3  1  2  4 
Total Unerrored Codewords 82572607  82572612  82572702  82572615 
Total Correctable Codewords 18  18  14  14 
Total Uncorrectable Codewords 730  728  642  731 

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  • NicholeC's avatar
    NicholeC
    Moderator
    Hi nickaz99,

    Is there a splitter connected to the coax line going to your modem, or is the line direct from the modem to the cable outlet? Is the power cord direct to the power outlet, or is it connected through a surge protector or UPS?

    Thank you,
  • nickaz99's avatar
    nickaz99
    New Contributor

    Ms. Nichole,

    I live in an apartment complex; the coax cable is going directly into the cable modem without any signal splitter on my end.  The power is on a power strip.  

    Thank you for your interest,

    Nick

  • DannyS's avatar
    DannyS
    Moderator

    This appears as if you may need for someone to look into your account personally.  We can definitely be able to assist you with this.  Please reach us on Twitter at @CoxHelp, visit us on Facebook, or email by at cox.help@cox.com. Provide us the name on the account with the full service address with a link to this thread so we can get started.