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Cookie_Nottm
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New DE72 Quickstart - RCS Partial Service and SYNC Timing Synchronization failure

Hi, I am seeing repeated "RCS Partial Service" and "SYNC Timing Synchronization failure" at a new house which had previously had a VM or NTL era connection. New SH3 arrived today as part of the Quickstart scheme.

Using speedtest.net via a wired connection shows d/l <20Mb/sec on a M350 service, sometimes no connection all all.

I have reset the router to factory defaults, left it for an hour, tried it in modem mode with a separate WiFi router, alternative cables, all to no avail.

I've checked for service issues using 0800 561 0061 and the online tools, which report no issues in DE72.

Thanks in advance for any ideas.

Status

Cable Modem Status
Item Status Comments
Acquired Downstream Channel (Hz) 138750000 Locked
Ranged Upstream Channel (Hz) 53700000 Locked
Provisioning State Online

Downstream

Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 138750000 0.7 40 256 qam 1
2 146750000 0.5 40 256 qam 2
3 154750000 0.5 40 256 qam 3
4 162750000 0.2 40 256 qam 4
5 170750000 0.5 40 256 qam 5
6 178750000 0.2 40 256 qam 6
7 186750000 0 40 256 qam 7
8 194750000 0 40 256 qam 8
9 202750000 -0.2 40 256 qam 9
10 210750000 -0.5 40 256 qam 10
11 218750000 -0.9 40 256 qam 11
12 226750000 -1 40 256 qam 12
13 234750000 -1.2 40 256 qam 13
14 242750000 -1.4 40 256 qam 14
15 250750000 -1.2 40 256 qam 15
16 258750000 -1.5 40 256 qam 16
17 266750000 -1.5 40 256 qam 17
18 274750000 -2 40 256 qam 18
19 282750000 -1.5 40 256 qam 19
20 290750000 -1.7 40 256 qam 20
21 298750000 -1.4 40 256 qam 21
22 306750000 -1.4 40 256 qam 22
23 314750000 -1.4 40 256 qam 23
24 322750000 -1.5 40 256 qam 24

Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 40.3 6 0
2 Locked 40.3 4 0
3 Locked 40.3 5 0
4 Locked 40.9 0 0
5 Locked 40.9 6 0
6 Locked 40.9 0 0
7 Locked 40.3 5 0
8 Locked 40.3 5 0
9 Locked 40.3 6 0
10 Locked 40.9 5 0
11 Locked 40.3 5 0
12 Locked 40.3 5 0
13 Locked 40.3 5 0
14 Locked 40.3 0 0
15 Locked 40.9 6 0
16 Locked 40.9 5 0
17 Locked 40.3 5 0
18 Locked 40.3 0 0
19 Locked 40.9 0 0
20 Locked 40.3 0 0
21 Locked 40.3 18 0
22 Locked 40.3 7 0
23 Locked 40.3 5 0
24 Locked 40.3 5 0

Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 53700000 47.8 5120 64 qam 1
2 39400000 46 5120 64 qam 3
3 32600000 45.3 5120 64 qam 4
4 46200000 46.8 5120 64 qam 2

Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 0 0
3 ATDMA 0 0 0 0
4 ATDMA 0 0 0 0

General Configuration
Network access Allowed
Maximum Number of CPEs 1
Baseline Privacy Enabled
DOCSIS Mode Docsis30
Config file cmreg-vmdg505-bbt062-b.cm

Primary Downstream Service Flow
SFID 450342
Max Traffic Rate 402500089
Max Traffic Burst 42600
Min Traffic Rate 0

Primary Upstream Service Flow
SFID 450341
Max Traffic Rate 38500089
Max Traffic Burst 42600
Min Traffic Rate 0
Max Concatenated Burst 42600
Scheduling Type BestEffort

Network Log
Time Priority Description
13/08/2021 20:56:34 notice LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/08/2021 20:51:49 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/08/2021 20:51:49 critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/08/2021 20:51:49 Warning! RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
13/08/2021 20:50:58 Warning! Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

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Lee_R
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Re: New DE72 Quickstart - RCS Partial Service and SYNC Timing Synchronization failure

Hi @Cookie_Nottm thanks for posting and welcome back to our community.

Sorry to hear you're having connection and speed issues.  I have located your account from here and cannot find anything that may explain this.  I am going to send you a quick private message.

Regards

 

Lee_R

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Lee_R
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Helpful Answer

Re: New DE72 Quickstart - RCS Partial Service and SYNC Timing Synchronization failure

Hi @Cookie_Nottm

Just a quick note to confirm you're satisfied with the response and efforts of the forum team?  Remember if you ever need assistance in the future, our fantastic community and forum team are always willing to lend a hand.

Regards


Lee_R

Cookie_Nottm
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Re: New DE72 Quickstart - RCS Partial Service and SYNC Timing Synchronization failure

Exactly, thank you Lee for your help over Private Message, really appreciated. All sorted now. Matt.

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