on 17-08-2021 11:23
I am using my Hub 3 in modem mode and it is intermittently dropping connection many times a day. I have looked at the network log, which is showing the following:
17/08/2021 10:11:29Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 10:11:28noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 10:10:57Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 10:08:26Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0
17/08/2021 09:59:4Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 09:56:13criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 09:32:25Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 09:24:25criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 06:41:33Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 06:41:28criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 05:51:34Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 05:51:33criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 05:21:43Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 05:21:18criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 04:47:32Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 04:46:46criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 04:45:2Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/08/2021 04:45:1criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
Several reboots tried. Any help appreciated.
Answered! Go to Answer
on 17-08-2021 14:13
on 17-08-2021 12:16
on 17-08-2021 12:45
Cable Modem StatusItem Status Comments
Acquired Downstream Channel (Hz) | 139000000 | Locked |
Ranged Upstream Channel (Hz) | 53699926 | Locked |
Provisioning State | Online |
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 139000000 | 7 | 38 | 256 qam | 1 |
2 | 147000000 | 6.9 | 38 | 256 qam | 2 |
3 | 155000000 | 7.1 | 38 | 256 qam | 3 |
4 | 163000000 | 6.8 | 38 | 256 qam | 4 |
5 | 171000000 | 6.5 | 38 | 256 qam | 5 |
6 | 179000000 | 6.3 | 38 | 256 qam | 6 |
7 | 187000000 | 6 | 38 | 256 qam | 7 |
8 | 195000000 | 5.9 | 38 | 256 qam | 8 |
9 | 203000000 | 5.6 | 38 | 256 qam | 9 |
10 | 211000000 | 5.4 | 38 | 256 qam | 10 |
11 | 219000000 | 5.1 | 38 | 256 qam | 11 |
12 | 227000000 | 5.1 | 38 | 256 qam | 12 |
13 | 235000000 | 5.1 | 38 | 256 qam | 13 |
14 | 243000000 | 4.4 | 38 | 256 qam | 14 |
15 | 251000000 | 4.4 | 38 | 256 qam | 15 |
16 | 259000000 | 4.8 | 38 | 256 qam | 16 |
17 | 267000000 | 4.5 | 38 | 256 qam | 17 |
18 | 275000000 | 4.9 | 38 | 256 qam | 18 |
19 | 283000000 | 5.5 | 38 | 256 qam | 19 |
20 | 291000000 | 5.3 | 38 | 256 qam | 20 |
21 | 299000000 | 5.4 | 38 | 256 qam | 21 |
22 | 307000000 | 5.8 | 40 | 256 qam | 22 |
23 | 315000000 | 6 | 38 | 256 qam | 23 |
24 | 323000000 | 5.4 | 38 | 256 qam | 24 |
Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 38.9 | 50686831 | 21252304 |
2 | Locked | 38.9 | 29039790 | 13994137 |
3 | Locked | 38.9 | 39120435 | 17163723 |
4 | Locked | 38.9 | 50696739 | 28566982 |
5 | Locked | 38.9 | 25250628 | 12273690 |
6 | Locked | 38.9 | 48383464 | 20018203 |
7 | Locked | 38.6 | 34407976 | 9511726 |
8 | Locked | 38.9 | 24448808 | 4571214 |
9 | Locked | 38.9 | 22172227 | 3471967 |
10 | Locked | 38.9 | 24137855 | 1178145 |
11 | Locked | 38.9 | 27356027 | 1412176 |
12 | Locked | 38.9 | 23546609 | 4694699 |
13 | Locked | 38.6 | 24371415 | 4349998 |
14 | Locked | 38.6 | 26060800 | 1127897 |
15 | Locked | 38.9 | 25271443 | 1071921 |
16 | Locked | 38.6 | 23061906 | 3235295 |
17 | Locked | 38.9 | 18489957 | 6934673 |
18 | Locked | 38.9 | 16809664 | 4576280 |
19 | Locked | 38.6 | 12064471 | 201233 |
20 | Locked | 38.9 | 14163406 | 460726 |
21 | Locked | 38.6 | 10546191 | 3521502 |
22 | Locked | 40.3 | 8608004 | 2507544 |
23 | Locked | 38.9 | 5346253 | 98815 |
24 | Locked | 38.6 | 7012860 | 107542 |
Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 53699926 | 41.5 | 5120 | 64 qam | 6 |
2 | 60300000 | 42 | 5120 | 64 qam | 5 |
3 | 46200000 | 40.8 | 5120 | 64 qam | 7 |
4 | 39400000 | 40.5 | 5120 | 64 qam | 8 |
Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 72 | 0 |
2 | ATDMA | 0 | 0 | 52 | 2 |
3 | ATDMA | 0 | 0 | 60 | 2 |
4 | ATDMA | 0 | 0 | 49 | 2 |
on 17-08-2021 12:46
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 | 12148 |
Max Traffic Rate | 402500089 |
Max Traffic Burst | 42600 |
Min Traffic Rate | 0 |
Primary Upstream Service Flow
SFID | 12147 |
Max Traffic Rate | 38500089 |
Max Traffic Burst | 42600 |
Min Traffic Rate | 0 |
Max Concatenated Burst | 42600 |
Scheduling Type | BestEffort |
Network Log
Time Priority Description
17/08/2021 10:51:46 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 10:39:54 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 10:11:29 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 10:11:28 | notice | LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 10:10:57 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 10:08:26 | Warning! | Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 09:59:4 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 09:56:13 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 09:32:25 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 09:24:25 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 06:41:33 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 06:41:28 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 05:51:34 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 05:51:33 | critical | No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 05:21:43 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 05:21:18 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 04:47:32 | Warning! | RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
17/08/2021 04:46:46 | critical | SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0; |
on 17-08-2021 12:59
on 17-08-2021 13:59
Been rebooted many times. What colour is the led meant to be when the hub 3 is in modem mode as mine is Red.
on 17-08-2021 14:13
on 19-08-2021 14:21
Hi @johnlucas69.
Thanks for your post 🙂
I'm sorry to hear you're having some connection issues, I appreciate this is frustrating and we apologise for any inconvenience caused.
As helpfully advised by @jbrennand, please pop the hub back into router mode to see how things perform.
If you find you're still having issues, we'll happily run some diagnostics for you.
Thanks,
New around here? To find out more about the Community check out our Getting Started guide
on 19-08-2021 16:34
After tightening the cable to the router and resetting, I am only getting a few preRS errors, no post or timeouts. So I reckon the cable wasn’t tight enough. I will keep monitoring. Thanks for the help everyone.
on 22-08-2021 10:05
Hey @johnlucas69,
Thanks for the update, glad to hear there's been an improvement.
Keep us posted and let us know if you require any future assistance.
Kind regards,
New around here? To find out more about the Community check out our Getting Started guide