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Forum Discussion
CM2050V - Latest Firmware Preventing 2.5 Gbps Passthrough on Ethernet Port
Hello all, and specifically to the moderator, I'm reporting a potential firmware or hardware version defect where the native Ethernet port fails to pass through 2.5 Gbps speeds to the LAN, with f...
Thanks for the reply, and for confirming the HW version for all models is V1.0
As mentioned in the original post, the router is not part of the equation and has been completely removed from all testing (except for the initial speed test that identified the issue).
Both a Fluke LinkIQ (I mistakenly called it CableIQ in the OP) and the Xfinity tech's more sophisticated cable and ethernet testers, both connected directly to the modem with a short certified patch cable specifically designed for these types of testers, produced identical results (within a slight 1k variance, as noted in the OP).
Xfinity confirmed that upstream provisioning is normal, and this would indicate the bottleneck is within the modem. Since HW version doesn't appear to be a factor, firmware would be the next logical item to pursue. Unless the modem's 2.5 Gbps port capability, as stated in Netgear's marketing materials, isn't fully achievable in practice (which I doubt since prior to FW v10.01.03, I was able to get 1022 +-100 mbps using speedtest.net and nperf.com (and yes, this is a highly optimized network).
Regarding support: The modem is out of warranty based on purchase date, so standard support requires a paid plan. Is there a way to open a ticket specifically for firmware related issues, as this might be covered without cost to the consumer? I am unaware or able to open a firmware ticket, do you have a link or contact within Netgear where I can do this?
From all indications, the modem seems to be functioning as intended. The Xfinity onsite tech's diagnostics passed on their devices (including the Ethernet tester mentioned and a cable tester from the ISP side). It's unlikely the Ethernet port is faulty, as it negotiates at 2500 Mbps full duplex.
My aim is to highlight this publicly in hopes Netgear can investigate the cause and provide a workaround or solution to fixing their ethernet port on this modem. All of the consumer and ISP Operator level troubleshooting has been exhausted at this point. I'd appreciate any input from DarrenM on my three original questions.
Please post a copy and paste of the modems connection status and event log page.
https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
https://www.netgear.com/support/contact/
FURRYe38,
Sorry, I can't publicly publish any logs or status of the modem (or any connected system) due to security and privacy of this network, I appricate your help and understanding on this matter.
Regarding Frequency, Power, and SNR they are all were in spec, and the required number of bonded (Downstream Bonded Channels, Upstream Bonded Channels, Downstream OFDM Channels, and Upstream OFDMA Channels were correctly working for the 2.1 Gbps Service. There were no discernible errors in the log that would indicate anything other than optional operation.
So until we hear from DarrenM and feedback from Netgear (hopefully he can get this pushed through), there are no consumer side settings in the modem that can be looked at or changed. I'm satisfied with Xfinity through review of not only the network connections and method of testing, but also that the modem is operating as expected, apart from not passing through 2 Gbps to the ethernet port.
You can put the logs on a post. Espeically the cable connections logs. Only item would be to remove the MAC address from the EVENT Logs. Saying all with in spec doesn't tell anything.
However you'll need to reach out to NG support and get there help since we can't seem to help you out further.
Good Luck.