Question

Arris S33 V2 intermittent internet connection


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Hello community members ,

I recently purchased a refurbished Arris S33 v2 for my 1g connection from Optimum.

And I am getting random internet cuts for like 1 minutes and comes online again on its own.

I have a Mikrotik router behind S33 modem.

when modem goes offline I can clearly see the public ip on wan interface gone and replaced with 192.168.100.10. I don't have to reboot or do nothing it comes online on its own.

and below is my log

≈=========

No Ranging Response received - T3 time-out;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:46
3 DHCP failed - RS sent, no RA received;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
12/5/2024
13:24:59
3 Successful LAN WebGUI login from 47.219.233.94 on 24/05/12 at 1:34 PM.
31/12/1969
18:50:16
3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
18:50:19
3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=edit:personal information;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:20
3 CMSTATUS:US_Diplexer_Mode_Change:TLV-9, 5-42MHz.
31/12/1969
18:50:27
3 No Ranging Response received - T3 time-out;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:46
3 DHCP failed - RS sent, no RA received;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:16
3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
18:50:20
3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=edit:personal information;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:22
3 CMSTATUS:US_Diplexer_Mode_Change:TLV-9, 5-42MHz.
31/12/1969
18:50:26
3 No Ranging Response received - T3 time-out;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information.1;CM-VER=3.1;
31/12/1969
18:50:51
3 DHCP failed - RS sent, no RA received;CM-MAC=edit:personal information;CMTS-MAC=edit:personal informationCM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:15
3 CMSTATUS:US_Diplexer_Mode_Change:Init, 5-42MHz.
31/12/1969
18:50:19
3 SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=edit:personal information;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:21
3 CMSTATUS:US_Diplexer_Mode_Change:TLV-9, 5-42MHz.
31/12/1969
18:50:25
3 No Ranging Response received - T3 time-out;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-VER=3.1;
31/12/1969
18:50:32
6 Honoring MDD; IP provisioning mode = APM
31/12/1969
18:50:48
3 DHCP failed - RS sent, no RA received;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
31/12/1969
18:50:50
5 DHCP WARNING - Non-critical field invalid in response ;CM-MAC=edit:personal information:CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
12/5/2024
17:45:24
4 Primary address failed, secondary active;CM-MAC=edit:personal information;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
12/5/2024
17:45:25
6 TLV-11 - unrecognized OID;CM-MAC=1c:93:7c:a5:2c:a1;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
12/5/2024
17:45:30
6 DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2.;CM-MAC=1c:93:7c:a5:2c:a1;CMTS-MAC=edit:personal information;CM-QOS=1.1;CM-VER=3.1;
12/5/2024
18:41:31
3 Successful LAN WebGUI login from 47.219.233.94 on 24/05/12 at 6:51 PM

5 replies

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And below is the snap shot of my status page
 

 

Userlevel 5
Badge +41

As we checked the cable signals, under downstream channels all the signals are in range. But for the upstream channels, power levels should be greater than 45dbmv.

I suggest to contact internet service provider to adjust the cable signals in range or reprovision the modem to fix this issue.

 

Badge

Thank you, The tech visited and added some splitter in between now the upstream bonded channels looks good with 43.0dBmV but Down Bonded Channels Power is -1dBmV -2dBmV.
Is it a good number ??
 

 

Badge

Seems like something is still not good.
Why are there so many Uncorrectables ?
 


 

Userlevel 5
Badge +41

Correctable and uncorrectable should be zero values. I request to contact internet service provider and ask them to make the changes accordingly.

 

 

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