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CM2050V-speed capped at 50Mb download in a 500Mb plan
I installed this device in my house, put fiber directly on it, it registered without issues. But I noticed a odd issue: Any download is always capped at 50Mb/s (my plan is 500Mb/s for both downloads and uploads), but UPLOADS happen at full speed (500Mb/s). I tried some troubleshooting but nothing seems to work! I suspect it might have to do with firmware (I've updated it to latest firmware), but the problem is I can't find the original firmware that came with it ISP told me this router is compatilble, and they advised me to contact Netgear, which I'm doing, because it might be a software fault on device's side. It seems this is a secret device only ISPs have access. I mean, come ou guys! This router is sold in many places, and we currently can buy it from stores and install it ourselves.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 firmware v10.01.03 (around February 2025). Modem details: Hardware Version: 1.01 Cable Firmware Version: V10.01.03 Note that this is one of the first series of the modem purchased back in March of 2021. It has been in service as a reliable work horse since then (with the exception of the botched FW v9 update). The unit is out of warranty, but still performs reliability (except for this latest defect). The defect: This issue surfaced after Comcast auto-upgraded my plan from 1.2 Gbps to 2.1 Gbps plan; a routine speed tests showed no improvement, maxing out at ~986 Mbps instead of the expected 1800-1900 Mbps (accounting for overhead). Key evidence: 1. Via SSH to my router, the WAN port negotiates at 2500 Mbps full duplex: eth0 (Int switch port: 3) (Logical Port: 3) (phyId: 1e) Link Up at 2500 mbps full duplex 2. A direct connection tests to the modem's Ethernet port: Using my Fluke Networks CableIQ tester: Max output ~986 Mbps. 3. Xfinity onsite tech visit: Confirmed excellent coaxial signal levels from street to modem (provisioned for 2.1 Gbps). Their better and more sophisticated Ethernet tester replicated my results at ~987 Mbps directly on the modem eth port. Additionally their tester showed the ISP service side of the modem and he ran diagnostics and reviewed the modems frequently, power and SNR levels and all appear as expected (normal). Conclusion: ISP (Xfinity) confirms upstream provisioning and signals are optimal; the bottleneck is within the modem. This appears to be a firmware or perhaps a hardware version limitation preventing full 2.5 Gbps Ethernet passthrough. Since firmware updates are ISP-controlled, Netgear must coordinate a fix release. ISP Details: Xfinity, plan 2.1 Gbps Down / 300 mbps UP Internet Moderator: Could you please confirm and respond on: A. If engineering is aware and working on a fix for imminent rollout? B. If this is new, will you escalate for investigation and potential correction? C. Is this a possible Hardware v1.0 issue, and if so, what version is the newer CM2050V's HW Version and do they suffer the same problem? Thanks for your attention – eager for a resolution.
CM3000 upload speeds capped at 100Mbps with XFINITY GIGABIT X2
Hi all, I have a weird issue with my cm3000. It's running the latest FW according to netgear. I subscribe to Xfinity Gigabit x2. I am getting only 100Mbps on upload. I used to get 300+Mbps. We had a power outage a while back. My modem is on a UPS and didn't lose power. We also experience an extended Xfinity outage due to vandalism. I had the xfinity tech come out and he tested from the coax and the speeds were normal. We plugged the modem back in and ran a speed test from a laptop and uploads still at about 100Mbps. We factory reset the CM3000. Had them reprovision it and still 100Mbps. I let the xfinity tech go since he proved the line was good to his test set. I reinstalled my CM2050V. It downloaded the new firmware and my upload and download speeds are back to normal. Could there be an internal issue with the CM3000 due to power spike and being on possible ups back up and/or an issue with xfinity provisioning it wrong?? The CM3000 is still under hardware warranty (about 90 days left.) Should I just RMA it? Current speedtest from the Orbi 960. TIA
