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Motorola Cable Modem Sb6121 Firmware Update


Find the latest firmware and driver software for our home routers and DSL hardware. Order batteries for ARRIS and Legacy Motorola products. Can I upgrade the firmware on cable modems & gateways? Firmware Update Guide for Motorola DSL Modems, Gateways, & Routers. SBR-AC3200P: Firmware Upgrade.

Firmware

Hello, I have a Motorola Surfboard SB6121 modem that is currently running firmware version 1.0.3.3. I wish to upgrade to the latest firmware because I believe that it may resolve an issue I'm having with the modem periodically freezing. But I find myself in a quandary. The device is designed such that only the service provider can update the firmware. So, I sent an email to Comcast support requesting the upgrade, and they replied stating that 'I have reviewed your account and confirmed that your modem is a purchased modem. For purchased modem, we actually do not support firmware upgrades.' This model is on Comcast's list of supported modems, but the tech is correct in that I did not acquire the modem from Comcast.

It is my understanding that the latest firmware for this modem is version 1.0.6.1. I have been able to locate release notes on this firmware, but not the actual firmware file. I am in the Houston, Texas area. Any thoughts? I am having the same issue. I have called Comcast support several times, each time spending 30-50 minutes on the phone only to have them tell me they'll send a tech out.

Update

I've had techs come out twice, they don't see an issue and say the signal strength is fine, and they leave. Then 30 minutes later my internet goes out. My SB6121 is running 1.0.3.3 and I looked up on Motorola support and they give the following: 'We apologize about the inconvenience, but your Motorola modem does not support manual upgrades. Motorola is not allowed to control the upgrades of DOCSIS devices, per the standards specification.

Any firmware or software changes must be implemented via the cable network. Your cable provider can update the firmware based on what they have approved for their network distribution. Because of that Motorola is not capable of installing firmware for cable modems. Please contact the cable operator to obtain information on upgrading firmware on the cable modem.'

Sooooo Motorola and the end user cannot upgrade the firmware, but then if the ISP doesn't do it how will my issue be resolved??? I could go buy another router but what would keep it from having the same issue?

COMCAST - PLEASE GIVE FIRMWARE UPDATES!!!! They're made for a reason - to solve issues.since neither tech support nor the technicians who've come to my house have solved them it's time to push out the firmware update to address these problems. Ok fair enough - can't update individual devices. But this is a common modem and one with all three check marks and three stars on Comcast's supported modem page.

What more do they want me to do? If it can only be done all at once, how would getting a new modem make any difference if it misses that update and ships with the old firmware? I have a motorola 5100 that runs fine but because it's not DOCSIS 3.0 the speed is less than half what I am currently getting through the 6121 when it's connected. It seems like the devices should be updated automatically every night or week to make sure any new hardware is up to spec in order to keep things running smoothly. If this issue can't be resolved by the end of my first billing cycle I probably won't bother getting a different modem because the same issue could just happen again.to which there is no remedy. These things should just work when you plug them in, I shouldn't have to mess with it at all.

Bnaughty wrote: Does that Zoom actually use all 8 bonded channels when the service is only say 24/4? I would think it would only use what it needs based on your bandwidth from comcast, so I'm seeking clarification.