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user_cwl598
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Wednesday, February 18th, 2026 6:55 PM

CM2050V issues with mid/high split infrastructure upgrade

I have a CM2050V modem that has been working fine on a 1 gb plan for a couple of years or more.  Last weekend on Saturday service men were in the neighborhood replacing the infrastructure on two poles and at the main underground service point.  They indicated it was the new mid/high-split technology upgrade.  Ever since then, my internet constantly drops in and out.  The modem has been factory reset and and re-setup, level 2 support did a "refresh" on the modem.  A service technician came and and checked the cable connections and setup a maintenance tuning for yesterday which was done.  Still internet drops in and out several times a day.  Firmware version V10.01.03 has been pushed to the modem but it still has trouble bonding upstream and downstream OFDMA channels (millions of uncorrectable errors). Sometimes I when I log into the modem I see Good (green) connection and sometime poor connection. Is there a Next Gen bootfile that needs to be pushed to my modem to improve stability or does the firmware need to be rolled back to an older version and an older bootfile. Is this modem going to be no longer supported?

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XfinityGabriel

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2 hours ago

 

user_cwl598, Hi there! Thanks for reaching out and for sharing all of this. I can understand how frustrating it is when everything was working fine for years, and the issues start right after a network upgrade. You’ve already done a lot of the right troubleshooting steps, so I appreciate the detail. With the mid/high‑split work that took place in your area, your symptoms (frequent drops, OFDMA channels not bonding, large numbers of uncorrectables, and the “good/poor” status fluctuating) usually point to a signal or noise issue that still needs to be cleaned up outside the home, not a firmware or bootfile problem on your CM2050V. You've come to the right team of experts to help with this. To get started, please send us a direct message with your first/last name and full address so we can ensure we pull up the correct account to have a look at what's going on. You can start by clicking the "direct message" icon in the upper right page of our forum page. Once you click on that, input our shared handle Xfinity Support to send us a direct message.

 

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