Hello, I have since a long time I have many connections lost (DSL signal). But now it becomes more and more often and annoying. I didn't find any fix on the forum for my problem, I live in a recent PPE appartement (built on 2010). The connection/cable should be fine and the DSL point is in a local of my PPE, so it's very close. As far as I remember, I didn't face any issue at the beggning (got the modem Centro Piccolo, before to upgrade to Centro Grande). Since I changed the modem to Grande, I think I started to get the connection lost time to time (but I'm not 100% sure). The last month was horrible, so many connections lost. When it's arriving while surfing : A default error page served by the modem indicate 2 different messages (randomly ?): (translated from French) - Modem is not able to establish connection to Internet - Unfortunately the modem is STILL not able to establish connection to Internet And when I play some games, I got connection lost. My internal network is working fine, I can ping and reach every element inside my LAN (cable Ethernet RJ45). The issue is clearly between the Modem and the DSL Central point (or the modem it-self). The DSL signal led is blinking when the issue is happening. I use the filter provided with the modem, to avoid any question about this. Modem : Centro Grande - ARRIS 7647-47 VDSL I tried to read the log in the diagnostic page of the modem, but I'm not able to understand the error message. Logs of the modem during the issue, I guess the red lines are indicating the issue : 22.09.2016 20:27:11 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:07 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:07 L5 cwmp DSLF_WanMgmtChg path[phy.dsl.dsl-modulation] val[VDSL2] 22.09.2016 20:27:06 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:05 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:05 L3 sdb dns_lan_redirect_notify. DOWN. restart proxy 22.09.2016 20:27:05 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:05 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:05 L3 sdb dns_lan_redirect_notify. DOWN. restart proxy 22.09.2016 20:27:04 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:04 L5 sdb Wi-Fi: scheduler fired. wireless interface already up 22.09.2016 20:27:04 L3 sdb DSL: Link showtime counter since boot 12 22.09.2016 20:27:04 L3 sdb DSL: VDSL profile 17a 22.09.2016 20:27:04 L3 sdb DSL: CO Vendor BDCM 22.09.2016 20:27:04 L3 sdb DSL: Trellis D/S:ON U/S:ON 22.09.2016 20:27:04 L3 sdb DSL: Latency path Interleaved 22.09.2016 20:27:04 L3 sdb DSL: Sync Rate in kbps D/S 48447 U/S 11007 22.09.2016 20:27:04 L3 sdb DSL: Mode VDSL2 (PTM) 22.09.2016 20:27:04 L3 sdb DSL: Transport type = 3 22.09.2016 20:27:04 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:27:04 L3 sdb DSL: Transport type = 3 22.09.2016 20:26:13 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:25:27 L5 lua_webui web login success for user: admin 22.09.2016 20:24:56 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:24:56 L3 sdb dns_lan_redirect_notify. DOWN. restart proxy 22.09.2016 20:24:56 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:24:56 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:24:56 L5 sdb Wi-Fi: scheduler fired. wireless interface already up 22.09.2016 20:24:56 L3 sdb dns_lan_redirect_notify. DOWN. restart proxy 22.09.2016 20:24:56 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:24:56 L3 sdb DSL: Link drop counter since boot 11 22.09.2016 20:24:56 L3 sdb DSL: Last Retrain Reason: 0x1 RDI Detector 22.09.2016 20:24:16 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:24:12 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:19:57 L1 sdb nm_ipv6_add_firewall: <sit1> (4) 22.09.2016 20:19:57 L1 sdb nm_ipv6_add_firewall: <sit1> (4) I already asked swisscom to check my issue in the past, they checked the line and found nothing... and the issue is still present. But now I'm tired to lose the connection so often, so I post a message. I work in IT and with my knowledge, I suspect : Modem issue Connectionissue/disruption between my appartment and the DSL point Issue in the DSL Central Point of my the local of my PPE Any one has ideas or suggestions ? Does someone can understand the Modem logs ? Thanks in advance for those who tooks time to read this LONG post 😉 You can reply in french or english if you want.
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