Tonight my gigabit modem rebooted on its own - it seemed to take a few tries before it was successful (I was watching the lights) and when it finally finished, all my network settings were gone. Luckily I had backed them up a few days ago so was able to restore them, but something like this has never happened to me before
It's still on the 22.214.171.124 firmware
there were MIMO events in the logs - all the logs up until the reboot were gone
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Thank you for posting your observation in the Community. The loss of both network settings and DOCSIS events log is like the modem was factory reset. I have seen this symptom happening due to the power surges and noise. If it happens more frequently then I would suggest looking into an UPS.
It IS plugged into a UPS
thank goodness for backups! Hopefully it was an isolated incident
Firmware version 126.96.36.199 is now being distributed I believe. I wonder if what happened was an attempt to upload the next version and for some reason it failed? That would seem to me to be a reasonable cause. I don't remember if you are running a Chromecast device, but if so, ask for the trial firmware for the CGN3ACSMR or CGNM-3552. That trial firmware is currently at 188.8.131.52.
Here's the link for the trial firmware post (Post #1):
I wonder if what happened was an attempt to upload the next version and for some reason it failed?
um, yeah - that might have happened when I unplugged it and plugged it back in
when I saw the lights off and nothing was happening I thought it needed a little help so I unplugged it - I had been watching something on Netflix and was slightly irritated at the interruption and wanted to get back to it ASAP
it didn't occur to me that it might be updating!
Yup, it can be a bit of a lengthy process. Thats a pretty good guess. The update failed and the modem reverted back to a factory reload of its existing version as the update had not completed by the time the modem was unplugged. I would ask for the current trial version 184.108.40.206 to be loaded on your modem. That will also put your modem on the trial update list for future updates if this procedure is going to continue.
I've been having issue with the cgn3acsmr gateway lately. It will out of nowhere just restart on it's own about once every 2-4 weeks. First thing I checked was to make sure the power cable was secure. Then I made sure there weren't any settings that were causing this. Not sure what else to do at this point. Could the cause be a fault unit? I've had it for 2 years now