Squirrelington Posted August 18, 2018 Share Posted August 18, 2018 (edited) Background: Roommate was in the middle of an Overwatch Competitive game, I was in the middle of WoW derping around and suddenly the net goes out. I hop onto the router (Netgear R6100) and the modem (Netgear CM400), both owned by me, to check what happened. The router indicated it had no DHCP IP (0.0.0.0). The modem indicated that no DBC Acknowledgement was received and it appears that it started scanning for signal soon after that? Does anyone know the likely cause of this to happen in the middle of the day? Modem Event Log: *** Entries before this were several days earlier. *** Aug 18 16:12:50 2018 Error (4) DBC-ACK not received Aug 18 16:12:54 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out Aug 18 16:13:42 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out Aug 18 16:14:23 2018 Warning (5) MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1 ISP: Spectrum (formerly serviced by Time Warner Cable) Startup Procedure ProcedureStatusComment Acquire Downstream Channel537000000 HzLocked Connectivity StateOkOperational Boot State---- Configuration File---- SecurityEnabledBPI+ IP Provisioning ModeIPv6 Onlyipv6Only(1) Downstream Bonded Channels ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUnCorrectables 1LockedQAM 2569537000000 Hz11.9 dBmV38.2 dB1502 2LockedQAM 25610543000000 Hz12.0 dBmV38.2 dB0521 3LockedQAM 25611549000000 Hz11.8 dBmV38.2 dB01417 4LockedQAM 25612555000000 Hz11.9 dBmV37.9 dB01510 5LockedQAM 25613561000000 Hz11.3 dBmV38.2 dB25606 6LockedQAM 25614567000000 Hz11.1 dBmV38.2 dB15718 7LockedQAM 25615573000000 Hz11.6 dBmV38.2 dB451475 8LockedQAM 25616579000000 Hz11.7 dBmV38.2 dB141632 Upstream Bonded Channels ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower 1LockedTDMA652560 Ksym/sec19200000 Hz48.0 dBmV 2LockedATDMA665120 Ksym/sec24000000 Hz48.8 dBmV 3LockedATDMA675120 Ksym/sec30400000 Hz49.5 dBmV 4LockedATDMA685120 Ksym/sec36800000 Hz50.5 dBmV Current System Time: Sat Aug 18 16:56:49 2018 Edited August 18, 2018 by Squirrelington Added ISP. Link to comment https://www.neowin.net/forum/topic/1370680-why-does-modem-disconnects-from-cmts-occasionally/ Share on other sites More sharing options...
Mindovermaster Global Moderator Posted August 18, 2018 Global Moderator Share Posted August 18, 2018 That should be the fault or your ISP's line, not the router/modem. Call up your ISP and get someone to look at your line. Link to comment https://www.neowin.net/forum/topic/1370680-why-does-modem-disconnects-from-cmts-occasionally/#findComment-598331244 Share on other sites More sharing options...
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