Question

S33 slow speeds with xfinity.

  • 21 March 2023
  • 1 reply
  • 603 views
F

Both Arris and Xfinity pointing fingers at each other.  Paying for 1.2 gig and getting between 200 and 400 on ethernet.  Was getting 900plus on xfinity modem.  Attached are logs if someone can help me.

(edit: CM-MAC information removed)

31/12/1969
17:02:19		 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:02:22		 3 No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
18/3/2023
07:09:40		 3 SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
18/3/2023
07:09:49		 3 No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:15		 3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
17:00:20		 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:21		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
31/12/1969
17:00:21		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
31/12/1969
17:00:21		 3 CMSTATUS:US_Diplexer_Mode_Change_Ignored:TLV-21.1, 42MHz.
31/12/1969
17:00:34		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
31/12/1969
17:00:34		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
31/12/1969
17:00:34		 3 CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
18/3/2023
14:12:21		 3 No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:15		 3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
17:00:19		 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:20		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
31/12/1969
17:00:20		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
31/12/1969
17:00:20		 3 CMSTATUS:US_Diplexer_Mode_Change_Ignored:TLV-21.1, 42MHz.
31/12/1969
17:00:34		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
31/12/1969
17:00:34		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
31/12/1969
17:00:34		 3 CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
31/12/1969
17:00:16		 3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
17:00:19		 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:21		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
31/12/1969
17:00:21		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
31/12/1969
17:00:21		 3 CMSTATUS:US_Diplexer_Mode_Change_Ignored:TLV-21.1, 42MHz.
31/12/1969
17:00:35		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
31/12/1969
17:00:35		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
31/12/1969
17:00:35		 3 CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
18/3/2023
14:33:41		 3 No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:16		 3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
17:00:20		 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:21		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
31/12/1969
17:00:21		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
31/12/1969
17:00:21		 3 CMSTATUS:US_Diplexer_Mode_Change_Ignored:TLV-21.1, 42MHz.
31/12/1969
17:00:34		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
31/12/1969
17:00:34		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
31/12/1969
17:00:34		 3 CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
18/3/2023
15:05:58		 3 No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
18/3/2023
15:30:23		 3 Successful LAN WebGUI login from ***.***.***.*** on 23/03/18 at 3:30 PM.
18/3/2023
15:32:14		 3 Successful LAN WebGUI login from ***.***.***.*** on 23/03/18 at 3:32 PM.
31/12/1969
17:00:16		 3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
17:00:19		 3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
17:00:22		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.2, 258MHz.
31/12/1969
17:00:22		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-21.3, 1002MHz.
31/12/1969
17:00:22		 3 CMSTATUS:US_Diplexer_Mode_Change_Ignored:TLV-21.1, 42MHz.
31/12/1969
17:00:27		 6 Honoring MDD; IP provisioning mode = IPv6
31/12/1969
17:00:35		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.2, 108MHz.
31/12/1969
17:00:35		 3 CMSTATUS:DS_Diplexer_Mode_Change_Ignored:TLV-84.3, 1002MHz.
31/12/1969
17:00:35		 3 CMSTATUS:US_Diplexer_Mode_Change:TLV-84.1, 5-42MHz.
18/3/2023
16:45:07		 6 DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
18/3/2023
16:45:25		 3 No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
21/3/2023
03:29:20		 3 Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=***.***.***.***;CM-QOS=1.1;CM-VER=3.1;
21/3/2023
10:35:44		 3 Successful LAN WebGUI login from ***.***.***.*** on 23/03/21 at 10:35 AM.
21/3/2023
12:07:28		 3 Successful LAN WebGUI login from ***.***.***.*** on 23/03/21 at 12:07 PM.
21/3/2023
13:59:50		 3 Successful LAN WebGUI login from ***.***.***.*** on 23/03/21 at 1:59 PM.
Procedure Status Comment
Acquire Downstream Channel 435000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK  
Security Enabled BPI+
DOCSIS Network Access Enabled Allowed  

 

Downstream Bonded Channels
Channel ID Lock Status Modulation Frequency Power SNR/MER Corrected Uncorrectables
4 Locked QAM256 435000000 Hz -2 dBmV 43 dB 0 0
1 Locked QAM256 417000000 Hz -3 dBmV 43 dB 0 0
2 Locked QAM256 423000000 Hz -3 dBmV 43 dB 0 0
3 Locked QAM256 429000000 Hz -3 dBmV 43 dB 0 0
5 Locked QAM256 441000000 Hz -3 dBmV 43 dB 0 0
6 Locked QAM256 447000000 Hz -2 dBmV 43 dB 0 0
7 Locked QAM256 453000000 Hz -2 dBmV 43 dB 0 0
8 Locked QAM256 459000000 Hz -2 dBmV 43 dB 0 0
9 Locked QAM256 465000000 Hz -2 dBmV 43 dB 0 0
10 Locked QAM256 471000000 Hz -2 dBmV 43 dB 0 0
11 Locked QAM256 477000000 Hz -2 dBmV 43 dB 10 0
12 Locked QAM256 483000000 Hz -2 dBmV 43 dB 16 0
13 Locked QAM256 489000000 Hz -2 dBmV 43 dB 6 0
14 Locked QAM256 495000000 Hz -2 dBmV 43 dB 0 0
15 Locked QAM256 507000000 Hz -2 dBmV 43 dB 0 0
16 Locked QAM256 513000000 Hz -2 dBmV 43 dB 0 0
17 Locked QAM256 519000000 Hz -3 dBmV 43 dB 0 0
18 Locked QAM256 525000000 Hz -3 dBmV 43 dB 0 0
19 Locked QAM256 531000000 Hz -3 dBmV 43 dB 0 0
20 Locked QAM256 537000000 Hz -3 dBmV 43 dB 0 0
21 Locked QAM256 543000000 Hz -3 dBmV 43 dB 0 0
22 Locked QAM256 549000000 Hz -3 dBmV 43 dB 0 0
23 Locked QAM256 555000000 Hz -3 dBmV 43 dB 12 0
24 Locked QAM256 561000000 Hz -3 dBmV 42 dB 16 0
25 Locked QAM256 567000000 Hz -3 dBmV 42 dB 13 0
26 Locked QAM256 573000000 Hz -3 dBmV 42 dB 0 0
27 Locked QAM256 579000000 Hz -3 dBmV 42 dB 19 0
28 Locked QAM256 585000000 Hz -3 dBmV 42 dB 28 0
29 Locked QAM256 591000000 Hz -3 dBmV 42 dB 23 0
30 Locked QAM256 597000000 Hz -3 dBmV 42 dB 0 0
31 Locked QAM256 603000000 Hz -3 dBmV 42 dB 0 0
32 Locked QAM256 609000000 Hz -3 dBmV 42 dB 0 0
193 Locked OFDM PLC 805000000 Hz -2 dBmV 42 dB 1253418841 0

 

 

Upstream Bonded Channels
Channel ID Lock Status US Channel Type Frequency Width Power
17 Locked SC-QAM 16400000 Hz 6400000 45.5 dBmV
18 Locked SC-QAM 22800000 Hz 6400000 45.5 dBmV
19 Locked SC-QAM 29200000 Hz 6400000 44.8 dBmV
20 Locked SC-QAM 35600000 Hz 6400000 44.8 dBmV
21 Locked SC-QAM 40400000 Hz 3200000 45.0 dBmV
22 Locked SC-QAM 10400000 Hz 3200000 46.3 dBmV

 

1 reply

S
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Hello Fourthwind

                         When it comes to slow speed issue we need to test the modem directly without router to check the optimum speed of the modem and since S33 is just a cable modem so you can access internet from only one port on the modem and if you need internet rom both the Ethernet port on the modem then you need to activate both the ports by the internet service provider end.

                       The logs are Values read by technicians from the internet provider end, since the logs are what the coaxial cable transmits and the log screen on the router is the translator so can be easily read by them, the coaxial cable is owned by the Internet service provider,  so we wouldn't be able to tell you what that means.

                       If your Event Log is reporting a high volume of errors, this would indicate a potential CMTS signal issue. To troubleshoot these errors, we would like to note the current signal levels being used by your (Modem S33). Please kindly check the link below for guidance to check the cable signal level on the modem.

                           http://arris.force.com/consumers/articles/General_FAQs/S33-Cable-Signal-Levels

Let us know if this helps.

SURFboard Community Moderator Team

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