Part of the Furniture
Did you ever get this resolved?
Which ISP did you work with?
A bunch of us are having issues with the MB8611 Modem on Xfinity starting in December & more so frequently now (~1x per 30 mins in some instances).
But no one on either side is owning up to the issue even after the modem has been rock solid for so many.
Want to hear if you had some news on your issue which sounds exactly (logs & all) like current problems we are having.
Xfinity probably rolled out a firmware update for that modem. Hopefully they'll roll out a fixed one soon.
Never have been a fan of the MB series motorolas. The surfboard is the gold standard (now owned by Arris but so far they haven't f'd it up too bad). No idea why motorola would sell off the cream of the crop and keep the sub-par line.
I'd say check your signal levels but if it is a widespread issue then seems more like a firmware problem. You can find out the firmware version and go see when it was rolled out potentially.
Some modems will drop the ethernet when the coax drops, so you can check the logs and signal levels and see if it seems to be signal related. Maybe they're bonding more channels (they did recently up the speed so that seems likely) and a signal that was ok before may be bad now.
If your signal levels are bad look into splitters, if possible you want your modem off a single -3.5db port (2 way splitter or unbalanced 3 way with one -3.5 and two -7 ports). You can also use a two way that feeds the modem off one port and another splitter for other things off another port. If that doesn't help, have the drop to your house and/or internal coax replaced. If the guy is nice and has a spool, he might run RG11 for you, had that done here years ago and he left me the rest of the spool to run internally. Of course I no longer use cable but nice to have it there.