We have a Hitron CGNV4 router running VM business—our home wifi is included in rent, therefore it's all under the letting agent's details. Over the past roughly two weeks we have been getting intermittent connection loss, usually for around a minute maximum, affecting both wifi and ethernet connections. It reconnects on its own but the disruption is long enough to disconnect us from calls and games. Some days it is pretty frequent, with 2-3 disruptions an hour, while other days we only experience one or two all day.
I've done a power cycle on the router which has not fixed the issue. I've not yet tried a factory reset but having looked at some other people with similar issues that doesn't seem to have fixed it for them. I've also tried calling the business helpline but not been able to get through security (as it's under the agent's info, and despite me asking them they've not given me the account details I need). Would appreciate any advice on this to know if I could fix it myself or if we need to get a tech in.
| No. | Time | Type | Priority | Event |
|---|
| 1 | 06/23/25 16:14:20 | 90000000 | warning | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 2 | 06/23/25 16:14:23 | 73040100 | notice | TLV-11 - unrecognized OID;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 3 | 06/25/25 16:19:49 | 82000200 | critical | No Ranging Response received - T3 time-out;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 4 | 06/26/25 17:55:02 | 68010300 | error | DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 5 | 06/26/25 17:55:02 | 68010600 | notice | DHCP Renew - lease parameters tftp file-cmbus-vmdg515-bbt071-b.cm modified;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 6 | 06/26/25 23:56:11 | 82000200 | critical | No Ranging Response received - T3 time-out;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 7 | 06/28/25 20:46:44 | 90000000 | warning | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 8 | 06/28/25 20:46:48 | 73040100 | notice | TLV-11 - unrecognized OID;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 9 | 06/29/25 23:40:10 | 82000200 | critical | No Ranging Response received - T3 time-out;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 10 | 06/30/25 05:54:54 | 68010300 | error | DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 11 | 06/30/25 05:54:54 | 68010600 | notice | DHCP Renew - lease parameters tftp file-cmbus-vmdg515-bbt071-b.cm modified;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 12 | 07/02/25 16:01:47 | 82000200 | critical | No Ranging Response received - T3 time-out;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 13 | 07/02/25 18:07:23 | 90000000 | warning | MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 14 | 07/02/25 18:07:25 | 73040100 | notice | TLV-11 - unrecognized OID;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 15 | 07/03/25 17:54:50 | 68010300 | error | DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 16 | 07/03/25 17:54:50 | 68010600 | notice | DHCP Renew - lease parameters tftp file-cmbus-vmdg515-bbt071-b.cm modified;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 17 | 07/06/25 22:03:20 | 82000200 | critical | No Ranging Response received - T3 time-out;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 18 | 07/07/25 05:54:50 | 68010300 | error | DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 19 | 07/07/25 05:54:50 | 68010600 | notice | DHCP Renew - lease parameters tftp file-cmbus-vmdg515-bbt071-b.cm modified;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| 20 | 07/08/25 06:37:37 | 82000200 | critical | No Ranging Response received - T3 time-out;CM-MAC=74:9b:e8:9d:dc:40;CMTS-MAC=58:ac:78:69:ee:b1;CM-QOS=1.1;CM-VER=3.0; |
| Port | Frequency (Hz) | Modulation | Power (dBmV) | SNR (dB) | Channel |
|---|
| 1 | 203000000 | 256QAM | -0.400 | 40.946 | 9 |
| 2 | 139000000 | 256QAM | -0.900 | 40.366 | 1 |
| 3 | 147000000 | 256QAM | -0.900 | 40.946 | 2 |
| 4 | 155000000 | 256QAM | -0.900 | 40.946 | 3 |
| 5 | 163000000 | 256QAM | -0.700 | 40.366 | 4 |
| 6 | 171000000 | 256QAM | -0.600 | 40.366 | 5 |
| 7 | 179000000 | 256QAM | -0.500 | 40.366 | 6 |
| 8 | 187000000 | 256QAM | -0.400 | 40.946 | 7 |
| 9 | 195000000 | 256QAM | -0.500 | 40.946 | 8 |
| 10 | 227000000 | 256QAM | -0.500 | 40.366 | 12 |
| 11 | 243000000 | 256QAM | -0.700 | 40.366 | 14 |
| 12 | 251000000 | 256QAM | -1.000 | 40.946 | 15 |
| 13 | 259000000 | 256QAM | -0.800 | 40.366 | 16 |
| 14 | 267000000 | 256QAM | -0.700 | 40.946 | 17 |
| 15 | 275000000 | 256QAM | -0.600 | 40.366 | 18 |
| 16 | 283000000 | 256QAM | -0.600 | 40.946 | 19 |
| 17 | 291000000 | 256QAM | -0.500 | 40.366 | 20 |
| 18 | 339000000 | 256QAM | 0.500 | 40.366 | 26 |
| 19 | 347000000 | 256QAM | 0.300 | 40.366 | 27 |
| 20 | 355000000 | 256QAM | 0.100 | 40.946 | 28 |
| 21 | 363000000 | 256QAM | 0.200 | 40.366 | 29 |
| 22 | 371000000 | 256QAM | 0.200 | 40.366 | 30 |
| 23 | 379000000 | 256QAM | 0.400 | 40.366 | 31 |
| 24 | 387000000 | 256QAM | 0.600 | 40.946 | 32 |
| Port | Frequency (Hz) | BandWidth | Modulation | Power (dBmV) | Channel |
|---|
| 1 | 43100000 | 6400000 | ATDMA | 51.000 | 2 |
| 2 | 30100019 | 6400000 | ATDMA | 52.000 | 4 |
| 3 | 36600000 | 6400000 | ATDMA | 51.000 | 3 |
| 4 | 49600000 | 6400000 | ATDMA | 51.000 | 1 |
