Having read some of the forums I decided to choose the advice of one member and post the results of "Check Router Status" in the hope of getting something resolved.
Cable Modem Status
Item Status Comments
Acquired Downstream Channel (Hz) 235000000 Locked
Ranged Upstream Channel (Hz) 53700000 Locked
Provisioning State Online
Downstream bonded channels
Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1 235000000 3 40 256 qam 13
2 203000000 3.7 40 256 qam 9
3 211000000 3.5 40 256 qam 10
4 219000000 3.2 40 256 qam 11
5 227000000 3 38 256 qam 12
6 243000000 2.7 40 256 qam 14
7 251000000 2.4 40 256 qam 15
8 259000000 2.7 38 256 qam 16
9 267000000 3.5 40 256 qam 17
10 275000000 3.2 38 256 qam 18
11 283000000 2.9 40 256 qam 19
12 291000000 3 38 256 qam 20
13 299000000 3.5 38 256 qam 21
14 307000000 3.4 38 256 qam 22
15 315000000 3 38 256 qam 23
16 323000000 3.2 38 256 qam 24
17 331000000 3 38 256 qam 25
18 339000000 3.4 38 256 qam 26
19 347000000 3.2 38 256 qam 27
20 355000000 3.2 38 256 qam 28
21 363000000 3.2 38 256 qam 29
22 371000000 2.9 38 256 qam 30
23 379000000 2.5 38 256 qam 31
24 387000000 2.2 38 256 qam 32
Downstream bonded channels
Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1 Locked 40.3 100 0
2 Locked 40.9 54 0
3 Locked 40.3 96 0
4 Locked 40.3 584 0
5 Locked 38.9 1302 0
6 Locked 40.3 86 0
7 Locked 40.3 196 0
8 Locked 38.9 236 0
9 Locked 40.3 483 30
10 Locked 38.9 857 0
11 Locked 40.3 117 0
12 Locked 38.6 113 0
13 Locked 38.6 272 0
14 Locked 38.6 984 0
15 Locked 38.9 215 0
16 Locked 38.9 139 0
17 Locked 38.9 106 0
18 Locked 38.9 438 0
19 Locked 38.9 472 1
20 Locked 38.9 187 0
21 Locked 38.6 82 0
22 Locked 38.9 89 0
23 Locked 38.6 760 0
24 Locked 38.6 286 0
Upstream bonded channels
Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID
1 53700000 47.3 5120 64 qam 6
2 60300000 47.5 5120 64 qam 5
3 46200000 46.5 5120 64 qam 7
4 39400000 46 5120 64 qam 8
Upstream bonded channels
Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts
1 ATDMA 0 0 0 0
2 ATDMA 0 0 1 0
3 ATDMA 0 0 1 0
4 ATDMA 0 0 1 0
General Configuration
Network access
Allowed
Maximum Number of CPEs
1
Baseline Privacy
Enabled
DOCSIS Mode
Docsis30
Config file
cmreg-vmdg505-bbt057-b.cm
Primary Downstream Service Flow
SFID 580286
Max Traffic Rate 117000047
Max Traffic Burst 42600
Min Traffic Rate 0
Primary Upstream Service Flow
SFID 580285
Max Traffic Rate 10500047
Max Traffic Burst 16320
Min Traffic Rate 0
Max Concatenated Burst 16320
Scheduling Type BestEffort
Network Log
Time Priority Description
06/02/2021 12:33:24 notice LAN login Success;CM-MAC=4;CMTS-MAC= ;CM-VER= Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC= ;
05/02/2021 00:10:6 critical No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=CM-VER=3.0;
30/01/2021 21:28:58 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=;CM-VER=3.0;
27/01/2021 04:01:58 critical No Ranging Response received - T3 time-out;CM-MAC=CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
26/01/2021 04:42:2 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=CMTS-MAC=CM-QOS=1.1;CM-VER=3.0;
22/01/2021 19:36:29 critical No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
22/01/2021 16:42:2 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
21/01/2021 03:24:47 critical No Ranging Response received - T3 time-out;CM-MAC=CMTS-MAC=CM-QOS=1.1;CM-VER=3.0;
19/01/2021 04:42:2 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=b;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
17/01/2021 07:34:54 critical No Ranging Response received - T3 time-out;CM-MAC=CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
12/01/2021 23:13:10 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
11/01/2021 01:16:36 critical No Ranging Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
11/01/2021 01:15:52 critical Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=;CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 00:01:36 critical No Ranging Response received - T3 time-out;CM-MAC=4;CMTS-MAC=CM-QOS=1.1;CM-VER=3.0;
11/01/2021 01:13:19 notice SW download Successful - Via NMS
11/01/2021 01:10:22 notice SW Download INIT - Via NMS
09/01/2021 10:05:40 critical No Ranging Response received - T3 time-out;CM-MAC=CMTS-MAC=CM-QOS=1.1;CM-VER=3.0;
09/01/2021 01:55:10 Error DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=CMTS-MAC=;CM-QOS=1.1;CM-VER=3.0;
09/01/2021 01:55:8 Error DHCP RENEW sent - No response for IPv4;CM-MAC=CMTS-MAC=CM-QOS=1.1;CM-VER=3.0;