You both seem to be right. According to [1], residential customers can use Spectrum-approved modem models, but business customers must use Spectrum-provided mo

You both seem to be right. According to [1], residential customers can use Spectrum-approved modem models, but business customers must use Spectrum-provided modems. (I use my own modem with Spectrum too.) [1] https://www.spectrum.net/support/internet/compliant-modems-charter-network/ https://www.spectrum.net/support/internet/compliant-modems-c...