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CAX30 drops cable connection 2-3 times a day
Netgear CAX30 Firmware 2.2.2.2 Devices connect through WiFi and wired connections through an unmanaged switch. The CAX30 was pretty solid up until 2 weeks ago when the Internet connection began ...
Current uptime is 4 days, but that's because we had power go out. Before that, uptime was over a week. Seems like reducing downstream voltages below 7 dBmV may have corrected the problem. I say MAY because now the upstream voltages are 1 dBmV higher than recommended on two of the channels. The other 2 are within specs. The tech put a splitter on to reduce the voltages. If this becomes problematic again, I'll switch the splitter for a 3 dB attenuator.
Thanks for everyone's help with this. I'll mark it as solved.
Can you please post the Event Logs data page as well.
Power levels are a bit too high.
Thanks for the quick response. Event Log is attached. I have a call in to the ISP for a technician to come out tomorrow and check line voltages. I'll update with any new information. I also have a 3db attenuator on order from Amazon.
Any Criticals, Errors or Warnings seen in the event logs needs to be reviewed and resolved by the ISP. Indicates a signal issue on the ISP line up to the modem.
https://kb.netgear.com/24311/Power-level-guidelines-for-a-NETGEAR-cable-modem-router
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.
https://community.netgear.com/t5/Cable-Modems-Routers/General-info-and-Troubleshooting-for-Cable-Modems/m-p/1530376#M12853
https://www.duckware.com/tech/solving-intermittent-cable-modem-issues.html
https://highspeed.tips/docsis-events/Any progress on this?
SimonSaba wrote:
Thanks for the quick response. Event Log is attached. I have a call in to the ISP for a technician to come out tomorrow and check line voltages. I'll update with any new information. I also have a 3db attenuator on order from Amazon.
ISP was supposed to send someone out on Sunday but severe thunderstorms made that impossible. Rescheduled for Thursday (yes, July 4). I purchased two attenuators - 3db and 6 db but as luck would have it, the minute I ordered them, the connection became stable. My wife works from home so I didn't want to mess with it unless it became necessary. Voltages are still high. Also I looked at the drop and it runs through a rain gutter. If water is soaking the cable, that could also be a cause. The last time the connection went down was Sunday around the rain. No rain since and stable connection. Coincidence? I'll have the tech remediate that. I'll also have the tech check the tap on the pole. This is a very old system that predates Internet access. I'll update later in the week. Thanks for checking.
Soon as the wife is done, please put one of the coax line attenuators on.