Even with the latest DOCSIS modems, Comcast has been deprecating 2 channel and 4 channel modems in favor of 8 and 16 channel devices.
Were you buying the cheapest supported modem? Your modem was probably deprecated when you bought it.
Also, at least for Comcast, the fact that they don't support your modem doesn't mean it won't work. It just means they won't be pushing updates and if you call in with a problem they'll tell you to first replace the modem.
Not sure.. the Charter employees who come out usually test everything and everything else tests normal.
They don't seem bothered by the frequency ("is normal..")
Everything else connected to that part of the house seems normal.
The cable junction point out in the yard is usually under water... they replaced all that too, but said that's normal for this neighborhood (we're adjacent to wetlands). How that bombs out the modem inside the house continues to be a mystery.
I'm probably here for one or two more replacements, and I'll move to another part of my city.
Were you buying the cheapest supported modem? Your modem was probably deprecated when you bought it.
Also, at least for Comcast, the fact that they don't support your modem doesn't mean it won't work. It just means they won't be pushing updates and if you call in with a problem they'll tell you to first replace the modem.