Activated the modem with Spectrum and it worked for 16.5 hours. Then it started rebooting over and over. Spectrum didn't see anything wrong other than the modem connecting and reconnecting. I went back to my 9-year old modem (also Netgear CM500).
We replaced a comcast modem with this and couldn't be happier, It's connectivity and speed are amazing. You will be happy if you purchase this model. We have noticed a huge increase in speed. Thank you.