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Forum Discussion
CAX80 Firmware issues
Started have an issue last week with my cable speeds had a tech come out twice in a week to check for issues. I have my modem re-provisioned which is the only thing that fixes it for a time. I tried to get RMA but they keep telling me the modem is working properly and ill have to pay to get support. Correct me if I'm wrong but the settings for the device are provisioned by the cable company so there would be no settings to change to get it working properly meaning the firmware is bad or the device is. I have since switched to a different modem and have no problems.I have done trouble shooting, factory reset, firmware updates, etc.. Support will still not RMA my device.
9 Replies
What Firmware version is currently loaded?
Would need the CAX80 back online and connected to the ISP coax line and then Please post a copy and paste of the modems connection status and event log page for review here in the forums.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-routerHave 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.htmlFirmware was the latest release. No changes to firmware since I bought it in November 20th had no issues until last week.
Modems connection status had no errors - tech verified
Event Logs only issue
SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing
Tech noticed that that multi gig light went from white to orange after he unplugged the coaxial cable to use in his testing equipment and plugged it back in. After power cycling, factory reset no fix. Factory reset and reprovision fixed the issue again until power cycling. Speeds go from 950mbps to < 1mbps when the issue pops up.
If I can get around to it. I will swap the modems again and post the cable connection status. As of now with no changes to my network I'm using a spectrum modem without issues.
Will need both full cable connection status log and event logs please.
Fendforself wrote:Started have an issue last week with my cable speeds had a tech come out twice in a week to check for issues. I have my modem re-provisioned which is the only thing that fixes it for a time. I tried to get RMA but they keep telling me the modem is working properly and ill have to pay to get support. Correct me if I'm wrong but the settings for the device are provisioned by the cable company so there would be no settings to change to get it working properly meaning the firmware is bad or the device is. I have since switched to a different modem and have no problems.I have done trouble shooting, factory reset, firmware updates, etc.. Support will still not RMA my device.
Disagree. Your CAX80 is a combination cable modem and Wi-Fi router. The cable modem section of the device has firmware that is provisioned by the ISP. Not many settings you have any control over on that side. The Wi-Fi router side has a separate firmware package that is under the control of the end user. There are many settings on the router side that are under control of the end user.
Follow this link: https://www.netgear.com/support/ feed in your CAX80 model number. Look for a link to Product Support where you can download the manual and firmware updates for the router side of the device. Way too early to give up on that particular device.
"Disagree. Your CAX80 is a combination cable modem and Wi-Fi router. The cable modem section of the device has firmware that is provisioned by the ISP. Not many settings you have any control over on that side. The Wi-Fi router side has a separate firmware package that is under the control of the end user. There are many settings on the router side that are under control of the end user."
Using the router portion I had no slowdowns on my network using plex or transferring files between computers. Only issues were modem related.
