Ho gravi disservizi con TIM da qualche mese ormai.
Il noise margin (che quando funziona tutto correttamente è inchiodato a 12.0dB) ogni tanto comincia a sballare e avere delle oscillazioni enormi, picchi di 18, 20dB e cali fino ad arrivare a 0, con il successivo disallineamento e disconnessione.
Queste oscillazioni accadono sia quando la linea viene utilizzata, sia quando non lo è, cioè a notte fonda, l'ultima volta è successo alle 5 del mattino.
[DoS attack: ACK Scan] from source: 169.45.248.100:443, Friday, March 16,2018 05:12:04 [DoS attack: ACK Scan] from source: 169.45.248.100:443, Friday, March 16,2018 05:11:22 [Internet connected] IP address: 82.58.24.133, Friday, March 16,2018 05:11:20 [DSL: Up] Friday, March 16,2018 05:11:15 [DHCP IP: (192.168.0.11)] to MAC address A8:0C:63:7D:28:4A, Friday, March 16,2018 05:11:10 [DSL: Down] Friday, March 16,2018 05:10:23 [DSL: Up] Friday, March 16,2018 05:10:01 [DSL: Down] Friday, March 16,2018 05:09:00 [DSL: Up] Friday, March 16,2018 05:08:41 [Internet disconnected] Friday, March 16,2018 05:07:53 [DSL: Down] Friday, March 16,2018 05:07:49 [Time synchronized with NTP server time-g.netgear.com] Friday, March 16,2018 05:06:01 [DHCP IP: (192.168.0.5)] to MAC address 00:19:FB:FA:2E:BC, Friday, March 16,2018 05:05:16 [DoS attack: RST Scan] from source: 216.58.198.10:443, Friday, March 16,2018 05:05:15 [DoS attack: ACK Scan] from source: 39.135.17.42:161, Friday, March 16,2018 05:03:53 [DoS attack: RST Scan] from source: 216.58.205.42:443, Friday, March 16,2018 05:03:15 [Internet connected] IP address: 79.36.56.33, Friday, March 16,2018 05:02:50 [DSL: Up] Friday, March 16,2018 05:02:43 [DSL: Down] Friday, March 16,2018 05:01:32 [DSL: Up] Friday, March 16,2018 05:00:37 [DSL: Down] Friday, March 16,2018 04:59:45 [DSL: Up] Friday, March 16,2018 04:59:27 [Internet disconnected] Friday, March 16,2018 04:58:39 [DSL: Down] Friday, March 16,2018 04:58:34 [DoS attack: ACK Scan] from source: 66.102.1.188:5228, Friday, March 16,2018 04:57:50 [DoS attack: ACK Scan] from source: 31.13.86.2:443, Friday, March 16,2018 04:57:44 [Internet connected] IP address: 82.58.24.234, Friday, March 16,2018 04:57:41 [DSL: Up] Friday, March 16,2018 04:57:30 [Internet disconnected] Friday, March 16,2018 04:56:33 [DSL: Down] Friday, March 16,2018 04:56:28 [Internet connected] IP address: 79.36.56.33, Friday, March 16,2018 04:55:32 [DSL: Up] Friday, March 16,2018 04:55:09 [DSL: Down] Friday, March 16,2018 04:54:13 [DSL: Up] Friday, March 16,2018 04:53:55 [DSL: Down] Friday, March 16,2018 04:53:00 [DSL: Up] Friday, March 16,2018 04:52:41 [Internet disconnected] Friday, March 16,2018 04:51:53 [DSL: Down] Friday, March 16,2018 04:51:49
Ho già fatto tutto quello che potevo in casa, cioè, avvicinando il modem al doppino in ingresso in casa, rimuovendo i filtri e addirittura i telefoni.
Ho provato anche un altro modem e fa uguale.
Ora il doppino in ingresso è collegato direttamente al cavo RJ11 che si infila dentro al modem, quindi non c'è niente che lo possa disturbare.
Preciso che l'attenuazione della linea è ottima, vivo praticamente attaccato alla centrale telecom, 5dB di attenuazione.
Telecom ovviamente dice che la linea è perfetta e il problema è dentro casa mia.
Qualcuno ha esperienza in merito e mi può dare qualche info?