on 17-07-2021 16:00
Hi my network has been working fine and in the last 3 months it has started randomly disconnecting. This happens 4 or five time a day....
I have a hub 3 in modem mode
Unify Dream machine as my router.
All connected via ethernet.
I have extracted this from the logs. Seems when I am time traveling back to 1970 it causes some problems.
TimePriorityDescription
17/07/2021 14:42:47noticeLAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
17/07/2021 14:42:40Warning!LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:48criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
11/07/2021 15:52:43ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
07/07/2021 07:55:29criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
03/07/2021 05:51:44ErrorDHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:44criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:33Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;0
1/07/2021 12:53:29Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:28criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:28Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:28criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:27Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:27criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:53:27Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:47:21Warning!Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:47:20criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:47:20Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:47:20criticalSYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/07/2021 12:47:19Warning!RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
Thanks for any insight
Kenny
on 17-07-2021 16:36
FYI - 01/01/1970 is usually when your hub reboots and it has yet to get the time from the VM CMTS.
Please post your up/downstream stats and set up a BQM.
on 17-07-2021 17:12
Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 | 475000000 | -0.7 | 38 | 256 qam | 9 |
2 | 483000000 | -0.9 | 38 | 256 qam | 10 |
3 | 491000000 | -1 | 38 | 256 qam | 11 |
4 | 499000000 | -1 | 38 | 256 qam | 12 |
5 | 507000000 | -1.2 | 38 | 256 qam | 13 |
6 | 515000000 | -1.7 | 38 | 256 qam | 14 |
7 | 523000000 | -2.2 | 37 | 256 qam | 15 |
8 | 531000000 | -1.7 | 38 | 256 qam | 16 |
9 | 539000000 | -1.5 | 38 | 256 qam | 17 |
10 | 547000000 | -1.9 | 38 | 256 qam | 18 |
11 | 555000000 | -2.5 | 38 | 256 qam | 19 |
12 | 563000000 | -2.7 | 38 | 256 qam | 20 |
13 | 571000000 | -2.5 | 38 | 256 qam | 21 |
14 | 579000000 | -2.7 | 38 | 256 qam | 22 |
15 | 587000000 | -2.7 | 38 | 256 qam | 23 |
16 | 595000000 | -3 | 38 | 256 qam | 24 |
17 | 603000000 | -2.9 | 37 | 256 qam | 25 |
18 | 611000000 | -2.9 | 38 | 256 qam | 26 |
19 | 619000000 | -3.4 | 38 | 256 qam | 27 |
20 | 627000000 | -4 | 37 | 256 qam | 28 |
21 | 635000000 | -4.2 | 37 | 256 qam | 29 |
22 | 643000000 | -4.2 | 37 | 256 qam | 30 |
23 | 651000000 | -4 | 37 | 256 qam | 31 |
24 | 659000000 | -4.2 | 37 | 256 qam | 32 |
Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 | Locked | 38.9 | 6 | 0 |
2 | Locked | 38.9 | 8 | 0 |
3 | Locked | 38.6 | 9 | 0 |
4 | Locked | 38.6 | 6 | 0 |
5 | Locked | 38.6 | 4 | 0 |
6 | Locked | 38.6 | 1 | 0 |
7 | Locked | 37.6 | 5 | 0 |
8 | Locked | 38.9 | 5 | 0 |
9 | Locked | 38.9 | 4 | 0 |
10 | Locked | 38.6 | 5 | 0 |
11 | Locked | 38.9 | 4 | 0 |
12 | Locked | 38.6 | 8 | 0 |
13 | Locked | 38.6 | 7 | 0 |
14 | Locked | 38.6 | 6 | 0 |
15 | Locked | 38.6 | 7 | 0 |
16 | Locked | 38.6 | 0 | 0 |
17 | Locked | 37.6 | 6 | 0 |
18 | Locked | 38.6 | 7 | 0 |
19 | Locked | 38.6 | 6 | 0 |
20 | Locked | 37.6 | 8 | 0 |
21 | Locked | 37.6 | 6 | 0 |
22 | Locked | 37.3 | 6 | 0 |
23 | Locked | 37.6 | 8 | 0 |
24 | Locked | 37.3 | 7 | 0 |
Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 | 53700000 | 46.8 | 5120 | 64 qam | 7 |
2 | 39400000 | 45.8 | 5120 | 64 qam | 9 |
3 | 46200000 | 46.3 | 5120 | 64 qam | 8 |
4 | 32600000 | 45.5 | 5120 | 64 qam | 10 |
Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 | ATDMA | 0 | 0 | 1 | 0 |
2 | ATDMA | 0 | 0 | 0 | 0 |
3 | ATDMA | 0 | 0 | 0 | 0 |
4 | ATDMA | 0 | 0 | 0 | 0 |
on 17-07-2021 17:12
I have had a BQM going for a while and the graph seem to be blank.
Kenny
on 19-07-2021 16:45
Good Afternoon viprius, and thanks for your post on our Community Forums, and a very warm welcome to you!
Can you please provide us with an update as to how the services have performed over the weekend? Do you have any graphs from the BQM or a live link that you can refer us to?
Kindest regards,
David_Bn
on 19-07-2021 16:58
You need to set up a firewall rule to “Accept ICMP traffic” in the dream machine because pings from the internet are blocked by default and that’s what the BQM uses.
on 19-07-2021 17:21
ok update from the weekend is that there have been no further drops in connectivity.
I have enabled the UDM firewall rule so hopefully we should get a BQM graph shortly.
Kenny
on 19-07-2021 17:27
Thanks viperius
Looking forward to the BQM
Gareth_L
on 20-07-2021 09:18
I think I must be doing something wrong as the graph is still red.....
Kenny
on 20-07-2021 09:31