Bonjour à tous.
Depuis hier (28.01.2017) début de soirée je constament des pertes de connexions.
Après avoir analysé les divers éléments de mon réseau, je trouve ceci : (je n ai rien changé à ma configuration qui fonctionne depuis des mois sans soucis…)
1 Après reboot de la connect box, tu trouves les messages suivants dans le journal :
| | |
29-01-2017 16:01:33 | critical | No Ranging Response received - T3 time-out;CM-MAC=dc:53:7c:aa:d0:f0;CMTS-MAC=00:17:10:82:30:40;CM-QOS=1.1;CM-VER=3.0; |
29-01-2017 14:55:32 | critical | No Ranging Response received - T3 time-out;CM-MAC=dc:53:7c:aa:d0:f0;CMTS-MAC=00:17:10:82:30:40;CM-QOS=1.1;CM-VER=3.0; |
29-01-2017 13:48:37 | critical | No Ranging Response received - T3 time-out;CM-MAC=dc:53:7c:aa:d0:f0;CMTS-MAC=00:17:10:82:30:40;CM-QOS=1.1;CM-VER=3.0; |
29-01-2017 12:20:28 | critical | No Ranging Response received - T3 time-out;CM-MAC=dc:53:7c:aa:d0:f0;CMTS-MAC=00:17:10:82:30:40;CM-QOS=1.1;CM-VER=3.0; |
29-01-2017 10:02:25 | critical | No Ranging Response received - T3 time-out;CM-MAC=dc:53:7c:aa:d0:f0;CMTS-MAC=00:17:10:82:30:40;CM-QOS=1.1;CM-VER=3.0; |
29-01-2017 05:15:29 | critical | No Ranging Response received - T3 time-out;CM-MAC=dc:53:7c:aa:d0:f0;CMTS-MAC=00:17:10:82:30:40;CM-QOS=1.1;CM-VER=3.0; |
28-01-2017 21:39:13 | critical | No Ranging Response received - T3 time-out;CM-MAC=dc:53:7c:aa:d0:f0;CMTS-MAC=00:17:10:82:30:40;CM-QOS=1.1;CM-VER=3.0; |
Cela correspond pile poil avec le début des soucis.
Sinon, côté routeur interne (Netgear WNDR3700, j’ai également des logs intéressants mais plutôt orienté sécurité nouveau attack DOS :
[DoS Attack: ACK Scan] from source: 31.13.93.36, port 443, Sunday, January 29,2017 16:43:06
[DoS Attack: ACK Scan] from source: 31.13.93.3, port 443, Sunday, January 29,2017 16:43:01
[DoS Attack: ACK Scan] from source: 31.13.93.36, port 443, Sunday, January 29,2017 16:42:39
[DoS Attack: ACK Scan] from source: 31.13.93.3, port 443, Sunday, January 29,2017 16:42:20
[DoS Attack: ACK Scan] from source: 31.13.92.14, port 443, Sunday, January 29,2017 16:42:07
[Internet connected] IP address: 192.168.0.10, Sunday, January 29,2017 16:35:45
[DoS Attack: ACK Scan] from source: 31.13.93.36, port 443, Sunday, January 29,2017 16:33:52
[DoS Attack: ACK Scan] from source: 31.13.93.3, port 443, Sunday, January 29,2017 16:33:50
[DoS Attack: ACK Scan] from source: 31.13.92.14, port 443, Sunday, January 29,2017 16:33:29
[DoS Attack: ACK Scan] from source: 31.13.92.11, port 443, Sunday, January 29,2017 16:33:29
[DoS Attack: ACK Scan] from source: 31.13.92.14, port 443, Sunday, January 29,2017 16:33:20
Je mets juste un petit bout du log car c’est relativement toujours la même chose.
Merci au support (ou autre) de m’orienté sur un possible rétablissement ou de prendre contact avec moi au cas où.
Je suis à toutes questions.
PS : ça fait royalement chier pour un weekend 🙁