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Forum Discussion
CM600 firmware not upgraded by Time Warner Cable
I wanted to upgrade the existing firmware (V1.01.05) of my cable modem (CM600). Netgear website says that for Time Warner Cable (TWC) I should have V1.01.12 and that I cannot upgrade manually. I h...
I bought a CM600 a few days ago from Amazon as TWC-Spectrum was installing cable service. It must be an obselete product because the Firmware is v1.01.05 not v1.01.12 as on the approved list for cable modems and the up to date Firmware. The Quick Start guide is dated November 2015 which shows this must be an end of life product since neither Netgear or TWC-Spectrum will up date the Firmware to the latest v1.01.12 version. In addition, the CM600 ethernet led continually flashes green, and when downloading a file the modem starts fast and then about half way through stops with intermitent bursts of a few hundred KB of data, then nearly a minute later it resumes at full speed. TWC-Spectrum denies that their system is programmed to interrup a download stream.
If Netgear will not provide me the software to upgrade the Firmware to v1.01.12 via the ethernet port in a week, I will have to return the CM600 to Amazon as an obselete and defective product for a refund.
sokalski wrote:If Netgear will not provide me the software to upgrade the Firmware to v1.01.12 via the ethernet port in a week, I will have to return the CM600 to Amazon as an obselete and defective product for a refund.
They're not going to, might as well return it now.
What modem do you plan on buying that won't have this problem? It doesn't seem Time Warner/Charter updates customer owned modems.
The CM600 is probably the best DOCSIS 3.0 modem available - its the only one with a Broadcom chipset that does 24 downstream channels - great if you neighborhood's node is congested. Do yourself a favor and search for 'intel puma 6' to avoid purchasing any modems that use that chipset. Your only alternatives are to get a modem with a 16 downstream channel broadcom chipset, or move to an expensive DOCSIS 3.1 modem. Since those are very new, I wouldn't get one with an ISP that doesn't update firmware. I'm sure they have firmware bugs too.
I am also suspicious that your problems are firmware related. What are your signal levels (upstream/downstream) and correctable/uncorrectable codeword stats? May be easiest to post a screenshot of the modem admin page.
Since Charter/Spectrum doesn't have a modem rental fee, why not just use their modem and not worry about firmware updates?