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Nighthawk CM2050V Comcast Firmware Killed Speed
I understand Comcast has just updated the firmware in these routers from V2.01.03 to V9.01.01. My download speed went from 934 to 225. Comcast tech came out yesterday and cleared some signal loss b...
I contacted a supervisor who actually responded he could see the modem was not properly provisioned, he opened another ticket and one of their best techs came out. I think they fixed it from inside but he was excellent. Problem solved after a month and about 15 tickets opened. Thanks for the encouragement
db3058 wrote:I understand Comcast has just updated the firmware in these routers from V2.01.03 to V9.01.01. My download speed went from 934 to 225. Comcast tech came out yesterday and cleared some signal loss but it did nothing to increase the speed back to what it was. I'm paying for 800.
Is anyone else having this issue? Is Comcast killing these routers?
The firmware on my CM2050V was updated several days ago. No degradation in throughput capacity. No indication elsewhere on the web that the firmware update is killing the modems.
Recommend you use the Ookla stand alone application for testing throughput. It is available from the play store. What device are you using to test throughput and how is it connected to the internet? Maybe via Wi-Fi?
If you are on Windows, check to see if your Network Profile has changed from Private to Public. If yes, change it back to Private.
Check the router that sets between your modem and whatever device you are using to test throughput.
I am measuring the speed on the back of the modem with my laptop.
db3058 wrote:I am measuring the speed on the back of the modem with my laptop.
With what application? Did you check your Network Profile? Is it Public or Private?
db3058 wrote:https://speedtest.xfinity.com/
That is a web address that uses a web browser in the data path.
Search for Ookla in the play store. It is a stand alone installable application that does not use a web browser for the testing.
Not changed...private
Power levels are with in spec however power levels across all channels is all over the place. All channels should be with in 3db on each channel. ISP needs to get the channel power with in spec of each other.
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.
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/
