said by boxfetish :So, I keep seeing that Charter doesn't support customer owned modems as of the summer of 2012. I have my own and have been using it since 2010, and, yes, I have changed my service in the past year and I am still using it.
I also did this a month ago. I upgraded from my 15 meg package to 30 meg when I spoke to retentions, which they offered me at 39.99 for 12 months. They didn't even mention upgrading my modem or anything.