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anothernetizen's avatar
anothernetizen
Aspirant
Jun 12, 2024

Connection issues with c6250

My router is having intermittent connection issues. Periodically it'll just cut out and I won't have a connection for 5 minutes or so before it comes back. On the bottom, it's labeled as a Netgear AC...
anothernetizen's avatar
anothernetizen
Aspirant
Jun 12, 2024

This is what I'm seeing:

 

Procedure Status Comment
Acquire Downstream Channel597000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
IP Provisioning ModeHonor MDD

honorMdd(4)

 

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1LockedQAM25612597000000 Hz0.8 dBmV40.1 dB36167
2LockedQAM2561531000000 Hz1.9 dBmV40.2 dB39139
3LockedQAM2564549000000 Hz1.6 dBmV40.3 dB45248
4LockedQAM2565555000000 Hz1.4 dBmV40.3 dB21136
5LockedQAM2566561000000 Hz1.4 dBmV40.2 dB75312
6LockedQAM2567567000000 Hz1.4 dBmV40.2 dB32165
7LockedQAM2568573000000 Hz1.4 dBmV40.2 dB62191
8LockedQAM2569579000000 Hz1.1 dBmV40.1 dB30187
9LockedQAM25610585000000 Hz1.1 dBmV40.1 dB30124
10LockedQAM25611591000000 Hz1 dBmV40.1 dB40164
11LockedQAM25613603000000 Hz0.7 dBmV40.1 dB40220
12LockedQAM25614609000000 Hz0.8 dBmV40.1 dB45197
13LockedQAM25617651000000 Hz0.5 dBmV40 dB30150
14LockedQAM25623687000000 Hz0.7 dBmV40 dB39175
15LockedQAM25624693000000 Hz0.7 dBmV40.1 dB52195
16LockedQAM25628717000000 Hz1.1 dBmV40.1 dB39103
 
Upstream Bonded Channels (Partial Service)
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1Not LockedUnknown50 Ksym/sec38000000 Hz0.0 dBmV
2LockedATDMA65120 Ksym/sec31600000 Hz45.5 dBmV
3Not LockedUnknown70 Ksym/sec25200000 Hz0.0 dBmV
4Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
FURRYe38's avatar
FURRYe38
Guru - Experienced User
Jun 12, 2024

Ok power levels are good. 

However you have correctables and un-correctables that should be mostly zeros. 

 

Have the ISP check the signal and line quality UP to the modem. Be sure the ISP provisions the modem correctly.
Be sure there are no coax cable line splitters in the between the modem and ISP service box. 
Be sure your using good quality RG6 coax cable up to the modem. 
Start with removing any amplifiers, signal attenuators, or splitters from the coax.
From there check the line for kinks, damage, moisture in the line.
Check the connectors for improperly made ends, foil touching the copper coax line, loose connections, bad/old/cheap connectors, or corroded connections. Replace them if you do.
Be sure to power OFF the modem for 1 minute then back ON.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/

  • anothernetizen's avatar
    anothernetizen
    Aspirant
    Jun 12, 2024

    Thank you! I'll give all that a try. Will report back here if there continues to be any issues.

    • FURRYe38's avatar
      FURRYe38
      Guru - Experienced User
      Jun 12, 2024

      👍